OIC File Read with XSD errors out

Summary: Trying to read a file with Header,data and trailer rows. Created xsd structure and was able to select in stageFile action. since i am expecting single trailer row i was able to select column in logger. However during execution i keep getting "

java.io.IOException: Unable to decrypt due to Failed to complete cipher operation: wrong final block length

"

I reduced the structure to just a single line but keep getting the same error. so FIleServer action → StageFile and above error.

I then changed to FTPAdapterDownload→FTPAdapterReadfile and now getting below error

Error
while translating.
Translation exception.
Error occurred