https://hastebin.com/umowabujok.rb

Exception error

Hello

The error is related to the player parameters monitoring system added by oxygen core. It can quite often appear due to an attempt to get some player data (armor value, active effects) asynchronously. This is not dangerous.

I will try to solve this problem, but for now you can turn off synchronization of the armor value and active effects by setting "sync_entities_armor_value" and "sync_entities_active_effects" to "false". Currently, this system is used by the Groups module to display the data of group members in the overlay.