Run Report doesn't work

[Espo]

Hi
I updated to the newest release of nubuilder. I startet at 4.7

Versions:
Database: mariadb.org binary distribution 11.7.2-MariaDB-ubu2404
PHP: 7.4.33
nuBuilder DB: V.4.8-2025.06.07.00
nuBuilder Files: V.4.8-2025.06.07.00

If I try to run a Report I got this error:
======================================
Notice: ob_end_clean(): failed to delete buffer. No buffer to delete in /var/www/html/core/nurunpdf.php on line 89

Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/core/nurunpdf.php:89) in /var/www/html/third_party/tcpdf/tcpdf.php on line 7726
TCPDF ERROR: Some data has already been output to browser, can't send PDF file

======================================

Thanks a lot,
Michael

[kev1n]

Hi, have you checked the server's error logs?