Error message

• Warning: file_get_contents(http://accounts.tsu.ru/api/Profile/GetAvatar?id=c89f9916-78f8-4ebb-b7f5-5b814c805fec): failed to open stream: HTTP request failed! HTTP/1.1 403 Forbidden in get_person_photo() (line 1159 of /data/www/philology.tsu.ru/html/sites/all/modules/person/person.module).
• Warning: simplexml_load_file(http://rnd.studdb.ru/api/MethodicalManuals/c89f9916-78f8-4ebb-b7f5-5b814c805fec): failed to open stream: HTTP request failed! HTTP/1.1 500 Internal Server Error in rnd_integration_methodicals_tab() (line 78 of /data/www/philology.tsu.ru/html/sites/all/modules/person/submodules/rnd_intagration/rnd_integration.module).
• Warning: simplexml_load_file(): I/O warning : failed to load external entity "http://rnd.studdb.ru/api/MethodicalManuals/c89f9916-78f8-4ebb-b7f5-5b814c805fec" in rnd_integration_methodicals_tab() (line 78 of /data/www/philology.tsu.ru/html/sites/all/modules/person/submodules/rnd_intagration/rnd_integration.module).