Unable to install plugins


I don’t know if anyone has encountered this problem. I have looked through the forum and found nothing similar.

When I try and install a plugin or plugin update to my child sites I get the following error: Installation failed(Not Found)

I’m at a loss. I have deactivated all plugins etc. still the problem persists.


Hi @nuno,

Can you please post the community system report from your MainWP Dashboard for review? The report is located in your Dashboard under Status → Server, on the top right of the page.

Be sure to use the button like the one below; this button hides all your private information:


Pressing the button auto-copies the report to your clipboard then just paste it in a reply here.

Hi Bogdan, here it is.

### Server Info                    Required                                               Detected                                     Status   ###

MainWP Dashboard                   
MainWP Dashboard Version                                                                             Pass        
MainWP Upload Directory            Writable                                               Writable                                     Pass        
MainWP Extensions                  
Advanced Uptime Monitor Extension  5.0                                                    Inactive                                     Warning     
MainWP Branding Extension          4.0                                                    Inactive                                     Warning     
MainWP Buddy Extension             4.0                                                    Inactive                                     Warning     
MainWP Favorites Extension         4.0.2                                                  Inactive                                     Warning     
MainWP File Uploader Extension     4.0                                                    Inactive                                     Warning     
MainWP Google Analytics Extension  4.0.3                                                  Inactive                                     Warning     
MainWP iThemes Security Extension  4.0.2                                                  Inactive                                     Warning     
MainWP Maintenance Extension       4.0.1                                                  Inactive                                     Warning     
MainWP Rocket Extension            4.0.1                                                  Inactive                                     Warning     
MainWP Sucuri Extension            4.0.5                                                  Inactive                                     Warning     
MainWP Team Control                4.0.1                                                  Inactive                                     Warning     
MainWP UpdraftPlus Extension       4.0.1                                                  Inactive                                     Warning     
MainWP Vulnerability Checker Extension4.0.3                                                  Inactive                                     Warning     
MainWP WooCommerce Status Extension4.0.1                                                  Inactive                                     Warning     
WordPress Version                  >=3.6                                                  5.4.1                                        Pass        
WordPress Memory Limit             >=64M                                                  256M                                         Pass        
MultiSite Disabled                 =true                                                  true                                         Pass        
FileSystem Method                  = direct                                               direct                                       Pass        
PHP Version                        >=5.6                                                  7.3.17-1+0~20200419.57+debian9~1.gbp0fda17   Pass        
PHP Safe Mode Disabled             =true                                                  true                                         Pass        
PHP Max Execution Time             >=30 seconds                                           180                                          Pass        
PHP Max Input Time                 >=30 seconds                                           -1                                           Pass        
PHP Memory Limit                   >=128M                                                 256M                                         Pass        
PCRE Backtracking Limit            >=10000                                                1000000                                      Pass        
PHP Upload Max Filesize            >=2M                                                   150M                                         Pass        
PHP Post Max Size                  >=2M                                                   150M                                         Pass        
SSL Extension Enabled              =true                                                  true                                         Pass        
SSL Warnings                       = empty                                                                                             Pass        
cURL Extension Enabled             =true                                                  true                                         Pass        
cURL Timeout                       >=300 seconds                                          60                                           Warning     
cURL Version                       >=7.18.1                                               7.52.1                                       Pass        
cURL SSL Version                   >=OpenSSL/0.9.8l                                       OpenSSL/1.0.2u                               Pass        
PHP Allow URL fopen                YES                                                    
PHP Exif Support                   YES ( V7.3.)                                           
PHP IPTC Support                   YES                                                    
PHP XML Support                    YES                                                    
PHP Disabled Functions             No functions disabled.                                 
PHP Loaded Extensions              Core, PDO, PDO_Firebird, PDO_ODBC, Phar, Reflection, SPL, SimpleXML, Zend OPcache, apache2handler, apc, apcu, bcmath, bz2, calendar, ctype, curl, date, dba, dom, enchant, exif, fileinfo, filter, ftp, gd, gettext, gmp, hash, iconv, imagick, imap, interbase, intl, ionCube Loader, json, ldap, libxml, mbstring, mysqli, mysqlnd, odbc, openssl, pcre, pdo_dblib, pdo_mysql, pdo_pgsql, pdo_sqlite, pgsql, posix, pspell, readline, recode, session, shmop, snmp, soap, sockets, sodium, sqlite3, standard, sysvmsg, sysvsem, sysvshm, tidy, tokenizer, wddx, xml, xmlreader, xmlrpc, xmlwriter, xsl, zip, zlib
MySQL Version                      >=5.0                                                  5.7.24-log                                   Pass        
MySQL Mode                         NOT SET                                                
MySQL Client Encoding              utf8                                                   
Server Info                        
Server Software                    Apache                                                 
Operating System                   Linux                                                  
Architecture                       64 bit                                                 
Server Protocol                    HTTP/1.0                                               
HTTPS                              ON - on                                                
Server self connect                Response Test O.K.                                     
User Agent                         Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36
Gateway Interface                  CGI/1.1                                                
Memory Usage                       47.59 MB                                               
Request Time                       1589780235                                             
Accept Content                     text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Accept-Charset Content             N/A                                                    
MainWP Settings                    
Number Of Child Sites              15                                                     
Use WP-Cron                        Yes                                                    
Optimize for Shared Hosting or Big NetworksNo                                                     
Automatic Daily Update             Install trusted updates                                
Abandoned Plugins/Themes Tolerance 365                                                    
Maximum number of posts to return                                                         
Maximum number of pages to return                                                         
Primary Backup System              Default MainWP Backups                                 
Maximum simultaneous requests      4                                                      
Minimum delay between requests     200                                                    
Maximum simultaneous requests per ip1                                                      
Minimum delay between requests to the same ip1000                                                   
Maximum simultaneous sync requests                                                        
Minimum simultaneous install/update requests                                                       
Active Plugins                     
Branda Pro                         3.3.1                                                  Active                                       
iThemes Security Pro               6.5.5                                                  Active                                       
MainWP Dashboard                                                         Active                                       
UpdraftPlus - Backup/Restore                                             Active                                       
WordPress Users & WooCommerce Customers Import Export(BASIC)1.4.1                                                  Active                                       

Thanks. Are you able to duplicate this problem if you deactivate the iThemes Security Pro plugin on your MainWP Dashboard site?

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