[fixed] YafaRay exporting error

Code:
wings-2.2.7

Reading preferences from: /Users/user/Library/Application Support/Wings3D/Preferences.txt

Using OpenCL via gpu:Name Apple:VSN: OpenCL 1.2 (Dec 21 2020 17:26:36)

Exporting  to: /Users/user/Desktop/wpc_yafaray-1540-3V81TQ.xml

for render to: //Users/user/Desktop/untitled.png

Mesh w_text: 春夏秋冬1: triangulating...done

Mesh w_text: 春夏秋冬1: exporting...ERROR: Failed to export:

{'EXIT',{badarg,[{io_lib,format,

                         ["~s    <f a=\"~s\" b=\"~s\" c=\"~s\"~s~s",

                          [[32,32,32,32,60,115,101,116,95,109,97,116,101,114,

                            105,97,108,32,115,118,97,108,61,34,119,95,116,101,

                            120,116,58,32,26149,22799,31179,20908,49,95,97,

                            117,118,34,47,62],

                           "24","29","30",

                           [32,117,118,95,97,61,34,"431",34,32,117,118,95,98,

                            61,34,"477",34,32,117,118,95,99,61,34,"446",34,47,

                            62],

                           []]],

                         [{file,"io_lib.erl"},{line,187}]},

                 {wpc_yafaray,uniprintln,3,

                              [{file,"wpc_yafaray.erl"},{line,5908}]},

                 {wpc_yafaray,export_faces,5,

                              [{file,"wpc_yafaray.erl"},{line,4694}]},

                 {wpc_yafaray,export_object_1,6,

                              [{file,"wpc_yafaray.erl"},{line,4574}]},

                 {wpc_yafaray,'-export/3-fun-2-',4,

                              [{file,"wpc_yafaray.erl"},{line,3190}]},

                 {wpc_yafaray,export,3,[{file,"wpc_yafaray.erl"},{line,3189}]},

                 {wpc_yafaray,'-do_export/4-fun-0-',3,

                              [{file,"wpc_yafaray.erl"},{line,698}]},

                 {wings_export,export,4,[{file,"wings_export.erl"},{line,40}]},

                 {wings_file,'-export_filename_1/2-fun-0-',3,

                             [{file,"wings_file.erl"},{line,97}]},

                 {wings_develop,time_command,2,

                                [{file,"wings_develop.erl"},{line,87}]},

                 {wings_plugin,command,3,

                               [{file,"wings_plugin.erl"},{line,147}]},

                 {wings,raw_command_1,3,[{file,"wings.erl"},{line,646}]},

                 {wings,raw_command,4,[{file,"wings.erl"},{line,643}]},

                 {wings_wm,handle_event,3,[{file,"wings_wm.erl"},{line,1032}]},

                 {wings_wm,send_event,2,[{file,"wings_wm.erl"},{line,998}]},

                 {wings_wm,do_dispatch,2,[{file,"wings_wm.erl"},{line,890}]},

                 {wings_wm,dispatch_event,1,

                           [{file,"wings_wm.erl"},{line,799}]},

                 {wings_wm,get_and_dispatch,0,

                           [{file,"wings_wm.erl"},{line,685}]},

                 {wings,init_part2,3,[{file,"wings.erl"},{line,108}]},

                 {proc_lib,init_p_do_apply,3,

                           [{file,"proc_lib.erl"},{line,226}]}]}}