Failure starting a cloned database with APOC

OK, so I cloned a 4.1.5 enterprise db, and make heavy use of apoc.
When starting the clone, I get a'Database failed to start error'. After investigating, I found a post that suggested removing the plugin (Apoc). I did this, and the database did start. However, I must have apoc. So I stopped it, installed the latest compatible apoc ( , and tried to restart. Same problem. Attached is the debug.log . Any help is appreciated - thanks,
debug.log.txt (6.3 MB)