Trait ‘setasign\\Fpdi\\FpdiTrait’

hi,
I have an issue after an upgrade to PHP 7.2
log says:
AH01071: Got error ‘PHP message: PHP Fatal error: Trait ‘setasign\\Fpdi\\FpdiTrait’ not found in ……. dk-pdf/vendor/mpdf/mpdf/src/FpdiTrait.php on line 24\n’, referer: https://ipmspain.pl/properties/first-line-villa-nlp1cbs1/

I’m using newest mpdf downloaded from https://github.com/mpdf/mpdf

Any idea what is missing or which declaration is wrong?
regards
Karol

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