The problem is not caused by the nested array. I replaced it with a string and the error still occurs
Info: 22:30:29 - Received - Database: panadur_1 Procedure: test Parameters: INSERT INTO object_DATA (ObjectUID, Instance, Classname, Damage, CharacterID, Worldspace, Inventory, Hitpoints, Fuel) VALUES (1152381130955152, 11, 'LockboxStorageLocked', 0, '76561198013238061', 'leer', 'leer', 'leer', 3333);
Info: 22:30:29 - Parsing parameters...
Warning: 22:30:29 - Couldn't parse procedure, split didn't work.
For Info. Balthorius and me are working on the same code.