You execute one of your scripts and see an error message like this: 
 
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What does this error mean?
Your script has a structural defect that prevents any attempt to execute it. For example, put this code:
 
if (1 == 2)
\{  
 
into a script and fail to add the required closing \}. The RAMP editor will warn you about the missing \}, but ignore the warning and go ahead and execute the script anyway. This will cause a 80020101 error because the script has a missing \}. 
The missing \} means the whole script does not make any sense at all. 
Similarly, this code causes an error because of the double closing square brackets:
 
SETVALUE("utxtBankAccountID",objListManager.AKey3\[0\]\])
 
Solution
Look for "unbalanced" things in your script such as: