PHP E_ERROR: Uncaught TypeError: gzdeflate(): Argument #1 ($data) must be of type string, bool given

Level: FATAL
Errorcode: E1027
Message: PHP E_ERROR: Uncaught TypeError: gzdeflate(): Argument #1 ($data) must be of type string, bool given in /var/www/instances-local/instance-1021/application/modules/editor/Plugins/IndiEngine/EventWriter.php:103
Domain: core
Version: not defined yet
File (Line): /var/www/instances-local/instance-1021/application/modules/editor/Plugins/IndiEngine/EventWriter.php (103)
User: system (system user) ({00000000-0000-0000-0000-000000000000})
Request: cli://localhost/editor/index
Trace:Stack trace:
#0 /var/www/instances-local/instance-1021/application/modules/editor/Plugins/IndiEngine/EventWriter.php(103): gzdeflate()
#1 /var/www/instances-local/instance-1021/application/modules/editor/Plugins/IndiEngine/EventWriter.php(199): MittagQI\Translate5\Plugins\IndiEngine\EventWriter->getBase64()
#2 /var/www/instances-local/instance-1021/application/modules/editor/Plugins/IndiEngine/Init.php(112): MittagQI\Translate5\Plugins\IndiEngine\EventWriter->batchWrite()
#3 /var/www/instances-local/instance-1021/vendor/shardj/zf1-future/library/Zend/EventManager/EventManager.php(469): editor_Plugins_IndiEngine_Init->handleErrorlog()