Fix frmMain Error

Step 1:

Go to your Desktop and press WIN + R
A new window named Run will open.

Step 2:

Type: %appdata%\RslHelper\Config\RSLHelper.ini or copy paste it from here.
A Texteditor will open. In some cases you will be asked what programm you want to use to open this file. Choose editor.
Now search for the line:

chkStartTimer=1

Change the value from 1 to 0.

Step 3:

Save the file by hitting save or close the window and confirm popup with yes to save changes.

Now run helper and enjoy it again.