Hi, Serkan.
> I could not see any log in the oxauth_script log file under tomcat/logs.
Please enclose all fragments of the original code you've modified in "try" blocks, like this:
try:
...
some block of code you modified
...
except Exception, ex:
print "Debugging inlet #1"
print "Unexpected error:", ex
...then try to monitor the oxauth_script.log again. This may help to uncover additional clues on what is going wrong.