Canon mv800i fault

Question

hi Ekse
The model canon camcorder is MV800i , the cassette is a TDK mini dv 60.
The loading mechanism will operate correctly with no tape installed but as soon as the mentioned tape is installed it wont even allow the tape to lower into the camcorder and after 5 seconds reopens and the lcd display says "remove the cassette".The camcorder is plugged into the power adapter and shows full charge, so low power is not the problem.