Are you sure about the version you are using?
When did you download your wallet?
3.3.8 is the latest version available for download by default since July 11 2019. If you downloaded your wallet after that date then most probably you got phished and downloaded a fake one.
OP is using mobile version of Electrum, and latest version for Android is 3.3.7.0 from July 3, 2019. According to everything he posted, we're pretty sure he didn't install a fake wallet - otherwise he would have been hacked long before April 3.
This is from a couple of days ago, and as you can read; the latest version for Android is 3.3.7.0. Check that before doing anything else to prevent loosing all your coins