What type of Maxell is it? Usually that's caused by the lubricant in the binder drying up. You can try baking it at the lowest temp in a toaster oven for no more than 10 minutes; it might make it work for one play.
After checking the tape is actually a BASF Ferro Super IEC1 and it says GAMAVA on it. There's 4 screws holding the 2 halves together. Any way to put some lube in it??
Cassette shell