Fatal error on MPDF's Block Tag

[jestonihpi]

Description We have received reports that there's an error in one of the MPDF's tag:

PHP Fatal error: Uncaught ValueError: str_repeat(): Argument #2 ($times) must be greater than or equal to 0 in /www/adoptionformychildcom_324/public/wp-content/plugins/gravity-forms-pdf-extended/vendor_prefixed/mpdf/mpdf/src/Tag/BlockTag.php:193

"PHP message: PHP Warning: Undefined array key -1 in /www/adoptionformychildcom_324/public/wp-content/plugins/gravity-forms-pdf-extended/vendor_prefixed/mpdf/mpdf/src/Tag/BlockTag.php

Which points to this code:

$ls = \str_repeat("  ", ($this->mpdf->listlvl - 1) * 2) . $blt . ' ';

Step To Reproduce Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior A clear and concise description of what you expected to happen.

Screenshots If applicable, add screenshots to help explain your problem.

Additional context Add any other context about the problem here.

[jakejackson1]

Not enough information.