Normally the 'bound' errors are fine, but I'm not sure about a missing ESP error. Been a while since I've used Wearable Lanterns, though. Regarding SKSE.ini, yes go ahead and create it. It allows SKSE to remove orphaned scripts. It takes a while to work, but just play the game normally and it may eventually get rid of some issues. Some users report that it helps to leave the game idling for a few hours, normally in the testing cell (coc qasmoke in the console to get there). I think one test you can do to see how the INI change is working is to monitor your save file size after sitting idle for an hour or so. If it decreases, then it may be an indication of scripts being removed.