Why did your team deem it appropriate to mess with core system components like /var?
Makes me wonder if other software might be attempting to damage the system (totally by mistake) but SIP is preventing it, making it quite deadly to use said good software if you happen to turn off SIP for stuff like debugging
Seems an awful lot of work related computers (eg Avid systems, and more) have been rendered inoperatable until someone manually boots and fixes each one.