quaiblockheight.py error: TypeError: unsupported operand type(s) for -: 'int' and 'NoneType'

[yellow-dragon]

root@quai-node:~# python3 quaiblockheight.py
Script running after 0:32:08.775536
Traceback (most recent call last):
File "/root/quaiblockheight.py", line 66, in
block_difference = height - previous_data["block_heights"][name]["height"]
TypeError: unsupported operand type(s) for -: 'int' and 'NoneType'

How to fix?

[shaaxdev]

Just remove previous_data.json and run it again.

This problem occurs when the script is executed incorrectly the first time (for example, if you were missing a dependency such as jq).
Once you've deleted the file, everything's back to normal.