Tech Mahindra — Technical issues in 2nd round off campus tech mahindra test

Dear sir/madam,
I have cleared my 1st round test and got an invitation for the 2nd round of tests. I started the test at around 2:40 pm. I finished the first section and submitted the first section. As soon as I submitted the first section it came out of that tab, and the remaining sections I couldn't attempt, and now when I'm trying to log in it's showing the candidate has completed the test. Can you please help me to resume the test?