Uncaught Mpdf\MpdfException: Data has already been sent to output (/home2/jbswbdv/public_html/wp-content/plugins/wp-rocket/inc/classes/dependencies/mobiledetect/mobiledetectlib/Mobile_Detect.php at line 888), unable to output PDF file
in /home2/jbswbdv/public_html/wp-content/mu-plugins/jbs_network/src/mpdf/vendor/mpdf/mpdf/src/Mpdf.php on line 9512

Call stack:

1. Mpdf\Mpdf::Output()
   wp-content/mu-plugins/jbs_network/autoload/pdf.php:229
2. jbsn_create_pdf(array)
   wp-content/mu-plugins/jbs_network/autoload/pdf.php:91
3. jbsn_generate_pdf_if_needed(WP)
   wp-includes/class-wp-hook.php:341
4. WP_Hook::apply_filters(NULL, array)
   wp-includes/class-wp-hook.php:365
5. WP_Hook::do_action(array)
   wp-includes/plugin.php:570
6. do_action_ref_array('wp', array)
   wp-includes/class-wp.php:838
7. WP::main('')
   wp-includes/functions.php:1343
8. wp()
   wp-blog-header.php:16
9. require('/home2/jbswbdv/public_html/wp-blog-header.php')
   index.php:17