SAP Message SBF_BW026 - Unknown request "&1" in the HTML page

Diagnosis The BAPI Explorer could not assign one of the tasks called from theHTML page. Probably the page contains an error. Procedure The command could not be executed but further work with the BAPIExplorer and with the project management should not be affected. Procedure for System Administration Check the HTML templates for the development class SBF_BW usingTransaction SMW0.