While building project in Reframework with Data table facing multiple issues

I am working on naurkari project where i have to excel files one has login details username,password , keyskill and experiecne and status and other sheet has Job info such keyskill and experience and job url and company name i am comparing both sheet and if keyskill and experience both matches for user the user in jobinfo sheet then i am getting those joburls for the users in login sheet then i am looggin with user and launching those url and appliying for job if joburl is expired then i have mentioned Business exception. but when i running project its running in inifinite loop not getting stopped and its launching the same url again and again… and when username is changing its not looging out user also… not able to troublshoot these issues… Please let me know how to fix these issues,.Thanks in advance.
here is my project and required sheets

Verify the loop activity once if any infinite condition present if yes try to use the counter.
and try to run in the debug mode you can catch the error by putting the break point where the exception is coming