Recent gajim repo upgrade has dependency on python-npxmpp>= 0.6.8 and precis-i18n currently missing
possible workaround is to get them with pip
pip3 install --user precis-i18n
pip3 install --user npxmpp
before you use the workaround you'll have to
sudo eopkg rm gajim
finally get gajim back
sudo eopkg install gajim
then start and upgrade your plugins as you usually do.