I used Ebookmaker as recently as yesterday with no problems, but today I'm getting no epub generated and output.txt shows the following: unzipping /htdocs/ebookmaker/cache/20210827154639/Vishnupuranam.zip Input file: Vishnupuranam.html EbookMaker 0.11.4 WARNING:root:Gutenberg Database is inactive because psycopg2 not installed Traceback (most recent call last): File "/var/www/.local/share/virtualenvs/ebookmaker-A6HCkzTJ/bin/ebookmaker", line 18, in <module> EbookMaker.main () File "/var/www/.local/share/virtualenvs/ebookmaker-A6HCkzTJ/lib/python3.6/site-packages/ebookmaker/EbookMaker.py", line 534, in main job.url = os.path.join(absoutputdir, output_files['epub.images']) File "/var/www/.local/share/virtualenvs/ebookmaker-A6HCkzTJ/lib/python3.6/posixpath.py", line 94, in join genericpath._check_arg_types('join', a, *p) File "/var/www/.local/share/virtualenvs/ebookmaker-A6HCkzTJ/lib/python3.6/genericpath.py", line 149, in _check_arg_types (funcname, s.__class__.__name__)) from None TypeError: join() argument must be str or bytes, not 'NoneType' I tried it a couple of times to be certain. Other than correcting some spelling errors, my input today is no different from yesterday. James Simmons