PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php7/modules/gd.so' - Error relocating /usr/lib/libpng16.so.16: inflateValidate: symbol not found in Unknown on line 0
PHP module GD not installed.
Please ask your server administrator to install the module.

An unhandled exception has been thrown:
Exception: Environment not properly prepared. in /nextcloud/lib/private/Console/Application.php:144
Stack trace:
#0 /nextcloud/console.php(89): OC\Console\Application->loadCommands(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#1 /nextcloud/occ(11): require_once('/nextcloud/cons...')
#2 {main}Trying ownCloud upgrade again to work around ownCloud upgrade bug...
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php7/modules/gd.so' - Error relocating /usr/lib/libpng16.so.16: inflateValidate: symbol not found in Unknown on line 0
PHP module GD not installed.
Please ask your server administrator to install the module.

An unhandled exception has been thrown:
Exception: Environment not properly prepared. in /nextcloud/lib/private/Console/Application.php:144
Stack trace:
#0 /nextcloud/console.php(89): OC\Console\Application->loadCommands(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#1 /nextcloud/occ(11): require_once('/nextcloud/cons...')