License problem in Solaris 7

Hai,
I have Sun W.S 5.0 installed on Solaris 7.0, in which SunWork Shop C Compiler was working fine.
Recently Iam getting the Error. The message i have Given it down.

License error:
Licensing product (SUN Workshop Compiler c sparc)
License file :/opt/SUNWSpro/5c5.0/bin/../../
License_dir /SUNpro.lic,node
Invalid license file systax
Feature: Workshop.c.sparc
license text
FLEXLM error: -2,134.

I have got the University license for SUNWORK SHOP 5.0 which is machine independent and the
license is for any machine under the Domain.

I have removed the license file /opt/SUNWSpro/license_dir/sunpro.lic,node
and i have added the license using "lit".
and the problem remains the same.

I have also Removed fully SUN WORKSHOP 5.0 with admintool.and installed the SUNWORK SHOP 6.0 and its license also.

Still iam getting the same problem while running
"cc".

Please help me.