Help me !! error occured in Lingo Version1.5.

[wschong]

Scenario:
I tried to edit one of the segment by using double-click, suddenly it come out an error and request me to close lingo under editing status without save my lingo project, after I re-open the same project and go back the same file which I had edited without saved my effort, it disallow me to edit any segment and pop up the same following error message, to require me to exit lingo without any reason.
It is quite weird, when I copied the whole project to the other computer and try to make some changes in each segment at the error file and save again, I tried to copy the whole project back to my own computer, it allows me to edit again and everything is going back to normal.
But after that this errors become frequently appeared.

Here enclosed the error screen capture.

Hopefully you can help me to solve this error, let me on time delivery my project.
I will appreciate that if I get the help from you.

[Richard Ferrell]

I would recommend that you open a support ticket by using the following Form

https://www.madcapsoftware.com/support/contact.aspx

[wschong]

ok!! thanks !!

[SteveS]

...and welcome to the forums