FATAL ERROR - invalid opcode 254 in token table

[tob at b-e-s-t.com]

Never saw this type of error before.  Running dclerk fp 4.8 on centos 5 with -t 600000
I realized that you would need more specific data but any quick thoughts?
Is there something in debug that could point me in the right direction?
 
FATAL ERROR
Invalid optcode 254 in token table
Line 5874, offset 1.
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