No matching genes found between the EQTL and expressions files

[okendojo]

I am getting the below error even though the genes in the eqtl file are the same ones in the expression file. I am attaching the two files for your attention. I hope you will help know what could be wrong.
exp.txt.gz
tt.tsv.gz

Done reading eqtls
Traceback (most recent call last):
  File "software/aFCn/src/afcn.py", line 218, in <module>
    main()
  File "software/aFCn/src/afcn.py", line 60, in main
    expr_dataframe = read_expressions(expressions_filename, eqtl_dataframe, args)
  File "parse.pyx", line 87, in parse.read_expressions
    raise Exception("No matching genes found between the EQTL and expressions files")
Exception: No matching genes found between the EQTL and expressions files