On line 56 on your report.tex, latex reports a problem.
Is this part of a table (tabular environment)?
- If yes, then number of columns declared at the beginning probably is not matching the number of fields on the line.
- If no, then replace “&” with “\&”. If you want to print “&” with latex, you precede it with a backslash (no space between the backslash and ampersand.
There is one more problem with the use of “&” on line 197.
But this is of the second kind for sure. Replace “&” with “\&” in here. If this is a citation in bib file, then go there and do the correction over there.