For app download you can use FDroid or Aurora Store. The default /e/ App store has some issues and is under extensive re-write.
For Bliss Launcher on a fresh install you should not have issues. You can try going to
Settings >> App & notifications >>See all apps >> Bliss Launcher >>Storage >> Clear storage + Cache
if that does not resolve your problem try using another launcher. but also raise a bug in gitlab with a log for the launcher.