I've received and examined your ASA configuration file.
Starting from line 4404 in the file, there are access-list commands, that I've never seen or read in Cisco ASA docs that the tool supports.
For example -
access-list cached ACL log flows: total 0, denied 0 (deny-flow-max 4096)
access-list 101; 1 elements; name hash: 0xe7d586b5
Or access-list commands having child access-list commands )indented commands).
The tool didn't recognize such format and therefore reported parsing failure.
If you remove the content starting from this line, the tool works fine and parses the file.
Just for the curiosity, what kind of configuration such access-list commands represent? Which ASA version?
I saw that on top of your file the ASA version is 8.4(7)...