Hello, I don't know if this problem come from ispconfig or my php. I have this error [Fri Apr 19 14:52:35.334040 2019] [proxy_fcgi:error] [pid 3943] [client xxxxxxx:33384] AH01071: Got error 'PHP message: PHP Fatal error: Uncaught Error: Call to undefined function wp() in /var/www/clients/client1/web8/web/wordpress/wp-blog-header.php:16\nStack trace:\n#0 /var/www/clients/client1/web8/web/wordpress/index.php(17): require()\n#1 {main}\n thrown in /var/www/clients/client1/web8/web/wordpress/wp-blog-header.php on line 16' I try other software, I have the same problem. It seems there is with the require_once( dirname( __FILE__ ) . '/wp-load.php' ), and to read the file because the link is correct but to read the document is not correct. it 's the first time I have this problem and I would know if you have been also the same error. Other example. https://stackoverflow.com/questions...a-class?noredirect=1#comment98188433_55756106 Before to reformat, all I try to find a solution. Maybe it's not in relation the ispconfig, I don't know, I ask the question, just in case.
This is not related to ISPConfig, it's a PHP problem. The first error message shows that a function is missing in the WordPress install. If you have include problems in other systems, then it might be that the include settings in the php.ini file are messed up.
Found my problem, It comes from Filezilla. When I upload a file, lot of files uploaded on 0 bytes. If I replace a file it becomes in 0 bytes. Replace FileZilla by another and the problem is resolved.