MongoDB Fatal error: Uncaught exception 'MongoCursorException'

[sedlino]

Debian 10, PHP version 5.6

Fatal error: Uncaught exception 'MongoCursorException' with message 'localhost:27017: Can't canonicalize query :: caused by :: $regex has to be a string' in /var/www/html/classes/logstreammongodb.class.php:1640 Stack trace: #0 /var/www/html/classes/logstreammongodb.class.php(1640): MongoCursor->rewind() #1 /var/www/html/classes/logstreammongodb.class.php(443): LogStreamMongoDB->ReadNextRecordsFromDB(-1) #2 /var/www/html/index.php(272): LogStreamMongoDB->ReadNext(-1, NULL) #3 {main} thrown in /var/www/html/classes/logstreammongodb.class.php on line 1640