[racket] Error while debugging

Hi, I'm very new to racket, so I tried to google solution, but have't found 
any. At the end, I was told to write here. So, here it is the problem:




Using drracket 5.3.2 on win7. After few days I started to use debuggin tool,
it was splendid while finding errors, but it doesn't work anymore on one 
given file. Sooner or later after switching on the debugger, drracket failed
down. Reinstall didn't help. One more clue, there is a function, at first I 
could mark stop (pause) debugging mark, but in that given function it is not
possible anymore (it's possible in others function).

Using debugger on another file results also as a program error and shutdown.





I also raised memory to 512mb, can give more if needed, but doesn't know 
wheather that would have any effect.







thx in advance

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