Item number 0 does not exist
Severity: Core Warning
Message: Failed loading Zend extension 'xdebug' (tried: /usr/lib/php/20170718/xdebug (/usr/lib/php/20170718/xdebug: cannot open shared object file: No such file or directory), /usr/lib/php/20170718/xdebug.so (/usr/lib/php/20170718/xdebug.so: undefined symbol: zend_post_startup_cb))
Filename: Unknown
Line Number: 0
Backtrace: