| ERROR | query operator ABOUT not supported by USER_LEXER |
| CAUSE | the query contains an ABOUT operator while using USER_LEXER lexer type |
| ACTION | remove ABOUT operator from query or use lexer type other than USER_LEXER |
| ERROR | query operator ABOUT not supported by USER_LEXER |
| CAUSE | the query contains an ABOUT operator while using USER_LEXER lexer type |
| ACTION | remove ABOUT operator from query or use lexer type other than USER_LEXER |