After effects 2018 opens this dialogue box at at app launch. "Unable to execute script line 388. invalid image data" ... google didnt manage to return with a lot of information on that. anyone got any ideas?!
Have you added some scripts, plugins, or something else? And does after effects turn on after you receive that message? Are you on Windows or MAC? Which version are you using? Have you changed any settings? Did you try to reset them? Here is how. While after effects is starting hold Ctrl+Alt+Shift (Windows) or Command+Option+Shift (Mac OS). And it will take a longer boot. After it turns on, there can be the message again, but restart it and see if it is not there.