0 - 1 of 1 tags for timestamp variable

Hi All,
I want to execute the below call procedure statement usingĀ a dynamic sql within a For loop of stored procedure.
call dbc.sysexecsql ('CALL dbname.'||proc_name_variable||'('||v1||','||v2||','||v3||','||v4||','||''||timestamp_variable||''||');' ) ;
But When i try to compile the procedure i am getting the following error.