Because the apps don't currently support OAUTH (a requirement by Google), you have to tell Google to allow "less secure" apps ( https://support.google.com/accounts/answer/6010255?hl=en ). Or you can wait for the next release of the "Online Accounts" panel: https://imgur.com/CYSc9Vl
You should have an email in your gmail inbox that says as much. :)
As of Epiphany 3.32 (maybe some earlier post-3.24 versions), you can edit the list of filter files using dconf-editor or gsettings
So, you should (haven't tested) be able to define a filter file with exceptions according to the AdBlock Plus syntax, upload it somewhere, and put the link in the adblock-filters setting.
You might even be able to get away with ...
Okay, first, I think that "can't run" isn't correct, because you can run it - you can see at your screenshot, that it runs (there is no prompt line after you start program) and the process is on.
Second, I think, that it can't be Elementary Os or Pantheon depended bug, so check your code carefully. You can try debuging. For example simple cout-debuging. Try ...
I have the same problem but my loading times are even higher than yours:
Startup finished in 1.987s (firmware) + 25.210s (loader) + 37.081s (kernel) + 3.052s (userspace)
= 1min 7.332s graphical.target reached after 3.041s in userspace
I have found a solution here:
The App I am using is Foliate. Is does not come with Elementary, but is relatively easy to install, as the author supplies a flatpak
To enable flatpaks on Elementary, follow the elementary OS Quick Setup:
sudo apt install software-properties-common --no-install-recommends
sudo add-apt-repository ppa:alexlarsson/flatpak
sudo apt update
sudo apt install ...