UnsupportedOperationException: No ruleset for

Hi Guys,

i got following error message by sender adapter. Can anyone assist me to solve this issue?

java.lang.RuntimeException: Error in conversion of DELJIT/97A-Edifact-Document at character 2554 to XML: java.lang.UnsupportedOperationException: No ruleset for DELJIT/97A available.

Thank you,

PM