Fatal error: Uncaught exception 'MongoResultException' with message 'ms1.mmb.pcb.ub.es:27017: The 'cursor' option is required, except for aggregate with the explain argument' in /var/www/html/MuGVRE/modules/BigNASimMuG/stats.php:38 Stack trace: #0 /var/www/html/MuGVRE/modules/BigNASimMuG/stats.php(38): MongoCollection->aggregate(Array) #1 {main} thrown in /var/www/html/MuGVRE/modules/BigNASimMuG/stats.php on line 38