Expected 'While,' 'Until,' or end of statement
You created a Do loop, but did not include the associated While or Until keywords. The test condition of a Do loop requires either a While or an Until keyword in the test condition statement. The following demonstrates the correct structure of a Do loop.
Do [{While | Until} condition]
[statements]
[Exit Do]
[statements]
Loop
Or, you can use this syntax:
Do
[statements]
[Exit Do]
[statements]
Loop [{While | Until} condition]
To correct this error
Make sure that the Do loop includes all the necessary parts.
Terminate the Do loop with either the While or Until keywords.