Yes, that screenshot is with developer mode enabled.
Without it, it would only appear this message
"We're sorry, but a temporary technical error has occurred which means we cannot display this site right now.syntax error, unexpected '' (T_ENCAPSED_AND_WHITESPACE), expecting '-' or identifier (T_STRING) or variable (T_VARIABLE) or number (T_NUM_STRING)You can try again by clicking the button below, or try again later."
Sorry, I forgot to explain. I updated my Invisioncommunity version and I've got this error.