over 3 years ago - Enfield_PDX - Direct link
Looking into your error log we can see some mod files erroring.
[13:18:26][dlc.cpp:344]: Invalid supported_version in file: mod/ugc_2105916101.mod line: 9
[13:18:26][dlc.cpp:344]: Invalid supported_version in file: mod/ugc_2292643447.mod line: 12
Sometimes mod files can get orphaned between version changes. When you reinstalled did you clear out both your documents-paradox interactive- stellaris folder as well as your steam installation folder? as in, uninstall, then check in these location that no files remain.