I've found the problem. It was a new plugin that was incompatible. Thanks!
General help
Moodle quiz misaligned
ဆွေးနွေးပွဲ သော့ခတ်ထားသောကြောင့် အကြောင်းပြန်၍ မရတော့ပါ။
I've found the problem. It was a new plugin that was incompatible. Thanks!