I suggest you learn how to read a manual. The Messages and Codes manual for the ADR380E message (hint: try http://www.ibm.com
if you cannot find it anywhere else), explicitly tells you what your problem is:
37 The new name specified with RENAME or RENAMEUNCONDITIONAL already exists on the volume and the REPLACEUNCONDITIONAL keyword was not specified. The REPLACE keyword cannot be used to replace a data set that is being renamed.
If you had looked this message up in the manual, you would not have needed to post here -- and saved yourself how many hours?