Insight: Publish Data Movement Task action raises error

Hello,

I'm trying to publish OOTBE2E ETL as data movement task.
1. Actions -> Login As
2. Actions -> Publish Data Movement Task
Data Manager raises this error:
1. ERROR
DM-CST-0110 Data Manager CST Interface Error (BIBusTKException - 14): DM_CST_ObjectExists

CCL-BIT-0014 The following HTTP Content-Length header is malformed:
Content-Length: 0


<exception Name="BIBusTKException" Error="14" Severity="Error"><messages><message Name="CCLMessage" File="cclbitmsgs" Severity="Error" Nesting="0"><messagetext>CCL-BIT-0014 The following HTTP Content-Length header is malformed:</messagetext></message><message Name="CCLMessageString" File="" Severity="Error" Nesting="0"><messagetext>Content-Length: 0</messagetext></message></messages><traceinfo><trace Text="../Session/CSTHelper.cpp(2269): BIBusTKException: CCL_RETHROW: CSTHelper::logonAsAnonymous"/><trace Text="../Session/CSTSendSoap.cpp(154): BIBusTKException: CCL_RETHROW: CSTSendSoap::send()"/><trace Text="BITKMessageReader.cpp(207): BIBusTKException: CCL_RETHROW: BITKMessageReader::openEnvelope"/><trace Text="BITKHTTPParser.cpp(361): BIBusTKException: CCL_THROW: BITKHTTPParser::processHeader"/></traceinfo></exception>

Any ideas?