Print server on apex.oracle.com is invoked when using rtf report queries.
But the print server is down.
Could you help us?

is_internal_error: true
apex_error_code: APEX.UNHANDLED_ERROR
ora_sqlcode: -29273
ora_sqlerrm: ORA-29273: HTTP request failed. ORA-06512: In "APEX_220200.WWV_FLOW_WEB_SERVICES", line 1230 ORA-06512: In "APEX_220200.WWV_FLOW_WEB_SERVICES", line 830 ORA-12541: TNS: No listener. ORA-06512: in "SYS.UTL_HTTP", line 380 ORA-06512: in "SYS.UTL_HTTP", line 1148 ORA-06512: in "APEX_220200.WWV_FLOW_WEB_SERVICES", line 804 ORA-06512: in "APEX_220200.WWV_FLOW_WEB_SERVICES", Rule 1071 ORA-06512: In "APEX_220200.WWV_FLOW_Web_services", line 1490 ORA-06512: In "APEX_220200.WWV_Flow_Webservices_Api", line 612 ORA-06512: in "Apex_Plow_fowil", 7220200., 70200.,, 70200.,, 702009,, 7220200., 70200., 7220200., 7220200., 7220200., 7220200., 7220200., 7220200., 72202009, 72202009, 72202009, 72202009, 72202009, 7220200.wvrow.wvh. ", line 1842 ORA-06512: in "APEX_220200.WWV_FLOW_RENDER_QUERY", line 1930
component.type: APEX_APPLICATION_PAGES
component.id: 14973000000006
component.name: Song Service
error_backtrace:
ORA-06512: In "APEX_220200.WWV_FLOW_WEB_SERVICES", line 1230
ORA-06512: In "APEX_220200.WWV_FLOW_WEB_SERVICES", line 830
ORA-06512: In "SYS.UTL_HTTP", line 380
ORA-06512: In "SYS.UTL_HTTP", line 1148
ORA-06512: In "APEX_220200.WWV_FLOW_WEB_SERVICES", line 804
ORA-06512: In "APEX_220200.WWV_FLOW_WEB_SERVICES", line 1071
ORA-06512: In "APEX_220200.WWV_FLOW_WEB_SERVICES", line 1490
ORA-06512: In "APEX_220200.WWV_FLOW_WEBSERVICES_API", line 612
ORA-06512: In "APEX_220200.WWV_FLOW_PRINT_UTIL", line 789
ORA-06512: in "APEX_220200.WWV_FLOW_RENDER_QUERY", line 1842
ORA-06512: in "APEX_220200.WWV_FLOW_RENDER_QUERY", line 1930
ORA-06512: In "APEX_220200.WWV_FLOW", line 2986