Admiral, please follow these steps:
Open Windows Command Prompt (press Windows + R), then type:
%HOMEPATH%\AppData\Local\Ultimate Admiral Dreadnoughts\log
There will be log files from the launcher (e.g. 20.07.20.txt)
Please copy the latest log file and provide full description on the issue (also capture a screenshot with the problem if possible), then contact Xsolla support team via live chat option (help.xsolla.com) or email (support@xsolla.com), describe your issue and attach files