Cannot map round mode 5

[Salvatore01]

Hello,
Going to the order management and then I select an order, a new browser page opens:

but i don't know what this error means, can you help me please, i need a step by step guide as i am a novice about it.
Thank you very much

 

 

Edited March 18, 2022 by Salvatore01 (see edit history)

[creation-handicap]

Hey, I had the same issue. Here is what I did to fix it:

1. Deactivate and re-activate the round module
2. Goto -> Settings -> General and re-save the rounding.

I'm not sure what did the fix, but right now, I'm able to see a detail of the orders.