Literally, “mal pagé” does not mean “wrong page” as “pagé” is not “page” and “mal” is an adverb (badly), not the adjective “mauvais”.

“Pagé” is probably the past participle of the verb “pager”, which is slang for “to sleep“ or “to lie down”), used here as an adjective. So my best guess is it is slang for “uncomfortably lying”.