Error on <<START>> Expression

[Ameteet]

Hi, I have a problem with my template. It has an error of "Found 1 unmatched 'Start'." when I try to make a PDF. Shown below is the template I have made. Please advise what other options I can do to make the table in this format. 

<<START:[Related Results]>><<[MEASUREMENT FUNCTION]>>

Test Value	<<[1st Test Value]>>	<<[2nd Test Value]>>	<<[3rd Test Value]>>
Timestamp	<<[1st Test Value Timestamp]>>	<<[2nd Test Value Timestamp]>>	<<[3rd Test Value Timestamp]>>
Test Value	<<[Reference 1st Test Value]>>	<<[Reference 2nd Test Value]>>	<<[Reference 3rd Test Value]>>
Timestamp	<<[Reference 1st Test Value Timestamp]>>	<<[Reference 2nd Test Value Timestamp]>>	<<[Reference 3rd Test Value Timestamp]>>

 <<[REMARKS]>><<[END]>>

Hope anyone could help me with my problem. Thank you!