Error al exportar resultados desde el exportar del cuadro

Buenas tardes.
Al intentar exportar lso resultados de los aspirantes desde el botón " Descargar Pdf " me sale el mensaje que adjunto.
Al intentar exportar desde el cuadro me salta este error:

Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/tehuelche/php/nucleo/selector_ug.php:50) in /var/www/html/tehuelche/vendor/siu-toba/framework/php/nucleo/lib/toba_http.php on line 60

Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/tehuelche/php/nucleo/selector_ug.php:50) in /var/www/html/tehuelche/vendor/siu-toba/framework/php/nucleo/lib/toba_http.php on line 61

Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/tehuelche/php/nucleo/selector_ug.php:50) in /var/www/html/tehuelche/vendor/siu-toba/framework/php/nucleo/lib/toba_http.php on line 62

Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/tehuelche/php/nucleo/selector_ug.php:50) in /var/www/html/tehuelche/vendor/siu-toba/framework/php/nucleo/lib/toba_http.php on line 63

Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/tehuelche/php/nucleo/selector_ug.php:50) in /var/www/html/tehuelche/vendor/siu-toba/framework/php/nucleo/lib/toba_http.php on line 64

Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/tehuelche/php/nucleo/selector_ug.php:50) in /var/www/html/tehuelche/vendor/siu-toba/framework/php/nucleo/lib/toba_http.php on line 65
%PDF-1.3 %âãÏÓ 1 0 obj << /Type /Catalog /Outlines 2 0 R /Pages 3 0 R >> endobj 2 0 obj << /Type /Outlines /Count 0 >> endobj 3 0 obj << /Type /Pages /Kids [5 0 R ] /Count 1 /Resources << /ProcSet [/PDF/TEXT/ImageB/ImageC/ImageI] /Font << /F1 7 0 R /F2 8 0 R >> >> /MediaBox [0.000 0.000 595.280 841.890] >> endobj 4 0 obj << /Creator (R&OS PDF php class) /CreationDate (D:20190429185057-00’00) >> endobj 5 0 obj << /Type /Page /Parent 3 0 R /Contents [ 6 0 R 9 0 R ] >> endobj 6 0 obj << /Filter /FlateDecode /Length 250 >> stream xœ“ÏNÄ ‡ï}Š9êed(pôï]à 4YÖ¸Ù¬k©ñõ[ˆj6ôB Ã7ß/ÍÐÝE`V¨I Ɉ;¸y" Bq •’Í]CòpLvé·ùü6§)ìߎ±[¾ü]Ç×N¢i;œó¸¯Éüš½ÈkG-YÔŽ.Ò/)Ÿ?Sž†Ê~Hž0’ù]%^’¡Øy0^Ííåï™ÐØ`¿ÎYZ.VЩ„Ë\ñõÁ û¾ÝWÁVŸÕÈÁlð°ÕGŒZñ_e}ÖÑ<î; ¶úôÏóÚ0/lôPó†y©àŠ¯{þè…àJ endstream endobj 7 0 obj << /Type /Font /Subtype /Type1 /Name /F1 /BaseFont /Helvetica /Encoding /WinAnsiEncoding >> endobj 8 0 obj << /Type /Font /Subtype /Type1 /Name /F2 /BaseFont /Helvetica-Bold /Encoding /WinAnsiEncoding >> endobj 9 0 obj << /Filter /FlateDecode /Length 725 >> stream xœÝÙOoÚ0ð;ŸâÛË›ÿ;9M[ÕN•&6­l§^,HCªLڏ·Ï²ã;í¶ÓÒF1Ölo-øÂ<ò„ñã% B û8Ïa»“Þ ^€Ëß/´Ò¨t£ ¼¸  ÑÍpt’ïšy G4Nat ç£î È’ÖðLðW’Jäš:5†E•/«Ú+Çúë 4aÖgÓ¢:“ño®1å”–w ¸CƒaQ3…QÖƒ¿¯çÍ2_~[ü‹…ÿϣǙêv_Û÷R@?j‡F5QHS{»lLY˜£ÙØ»ÚU˜ ûFòÍàGíТV‰D•Úë×ÅÜTã£ØÓÐ ­ aßFþ9¼¨]aÔJ¶ç‘½„½³Ù×*þª?Éè¡–S­3ƒPj‡Fµ¨‰½~]Vyy,›z±Ûg!ŸI[æÒ£f±W°áÏYv,]=ÎT´›úù´e. ž¨ lÂQS{ ;3e™E_ö§e»à2(T´Î, Û¡ñ¶^À°ÎM™-BÐe‘Q{-»*š¥?˜dÐ,af&óƒ; z¤5ÇTÅlͶsy¡»4>Q+ÖžQör¶Mýù©û¬%G¡cöf[©ü¨aÔ‚!c{ª)&fò }cfE{Á=Ï``læùüž÷ s†©Ž×“YúQ;4†54EVeA⌢fö‚ÖŸ·õ¡öç=ò”µÛ;j—ÖMä’îЈ"N(²=|9««»âîûÆu¦Ì—mÆ—p}ò±ZÕøi6žÖקQ}bŒ]c‘RL÷Ü{ŽœØÏÜá1 Á A½çŸ€óEc&5Œ‹»¢Œ´O7zü5E±ç†´/j—ÆU]6íuñ&‡†û|_'eû»?ƒÕ„P &íySÂÕRRòxoöOèz¦’VIdI÷°ë™ÝX–¢’Û¡ŠofBWAëOo‚ºÇ[­iÒIºžiƒ~©&# endstream endobj xref 0 10 0000000000 65535 f 0000000015 00000 n 0000000080 00000 n 0000000126 00000 n 0000000316 00000 n 0000000406 00000 n 0000000479 00000 n 0000000801 00000 n 0000000908 00000 n 0000001020 00000 n trailer << /Size 10 /Root 1 0 R /Info 4 0 R /ID [<7771baae5421129fab0e1abb8a26b3cb><7771baae5421129fab0e1abb8a26b3cb>] >> startxref 1817 %%EOF

Buen día Carolina. Como te va.

El evento que mencionas para la descarga del pdf no se encuentra implementado en la versión 4.0.0 de Tehuelche. Te pido si por favor podes realizar una instalación desde cero nuevamente pero de la última versión 4.0.1 esta vez, la misma implementa la descarga y corrige el warning que te arroja.

Saludos,
Germán

Es compatible con guarani 3.16.2 y kolla 4.2.1???

Sí, son compatibles.

Saludos!

OK. Pruebo y aviso como salio todo.
Saludos.