After the installation, Copilot Server starts normally, at first connect attemp from the Copilot Client, Server abends in module CEEBPICI :
CFTI14I Copilot init complete
SYSTEM COMPLETION CODE=0C4  REASON CODE=00000004
TIME=15.35.03  SEQ=02281  CPU=0000  ASID=00C2
PSW AT TIME OF ERROR  078D1400   800BACE4  ILC 2  INTC 0D
  ACTIVE LOAD MODULE           ADDRESS=000B95F0  OFFSET=000016F4
  NAME=CEEBPICI

At installation time, the job B25LKWS was run by error (webservices not installed).
Job B25LKWS generated in loadlib member COPDXER.

Solution : just delete or rename this module in the loadlib and restart COPILOT.