About laravel project. Please help me

I have a school management project which created with laravel php framework. when i add subject number for class 'Four' or 'Eight' then i face a problem which is "Symfony \ Component \ HttpKernel \ Exception \ MethodNotAllowedHttpException No message" But if i add number accept "four" or "eight" class then i have not face any problem. Again i add number in localhost there is no problem. That problem only live server. again when i login another id then i have no problem. This problem only one specific id which id is a school admin id. i can not understand what is problem. Please help me.

via Chebli Mohamed