"function not defined" crashing API sandbox

Hi, recently I came across a strange issue with one of my scripts ( DrD2StatusMarkers ) that started crashing the API sandbox. I have not made any changes to the script in over a year. For example: ReferenceError: checkInstall is not defined at SCRIPT: untitled.js [Tab 3]:25:18 at SCRIPT: untitled.js [Tab 3]:79:2 at Script.runInContext (node:vm:149:12) at Script.runInNewContext (node:vm:154:17) at Object.runInNewContext (node:vm:310:38) at Request._callback (/home/node/d20-api-server/api.js:4346:29) at self.callback (/home/node/d20-api-server/node_modules/request/request.js:185:22) at Request.emit (node:events:509:20) at Request.<anonymous> (/home/node/d20-api-server/node_modules/request/request.js:1154:10) at Request.emit (node:events:509:20) This does not happen for my other script ( DrD2LinkedTenacity ), even though the functions are virtually the same. Any tips?

This is a new thing recently pushed by Roll20.  Edit the script and remove "Use Strict".  It's at the very top.  

In DrD20StatusMarkers, change the ; on line 23 to a , and it will work fine. 

Thank you both, problem is solved