If your two words mean that you cannot open a document because your forgot your PW, there is no way around this. You need the PW to open the document.
If you mean something else, please clarify.
Hope you are doing well.
As @jane-e mentioned, we cannot understand the exact issue.
You may check the self-help article given for general troubleshooting: Top questions — Acrobat for Android Help
If this does not help, you may respond back here with more details for better assistance.
Look forward to hearing from you.