APIs stopped working mid-session

I'm prepping a new game of Lost Mine of Phandelver and have installed several APIs. The APIs are as follows: TokenMod, Roll20 Audio Master, GMInfo, TokenNameNumber, GroupInitiative, GroupCheck, and ApplyDamage. Yesterday, in the middle of prep--and without installing anything new--the APIs stopped working. I have the same scripts installed on a game of Storm King's Thunder and those scrips are working fine but I can't get anything out of this one. One minute they were working and the next minute, nothing. Any advice? 

Open your api settings page in another tab.  See if there are any errors in the api console, and if they go away when you restart the sandbox. 

Kraynic said: Open your api settings page in another tab.  See if there are any errors in the api console, and if they go away when you restart the sandbox.  Ah, I found it. I think it's the ApplyDamage API. Seems to throw up an error when I try to use that one. Thanks!