A non-numeric value encountered PHP 7.1

[dayrontbs12001]

In PHP 7.1 there are a number of situations in the code where you'd get this error. This error comes from the Dompdf library and it was already fixed in a recent version.
i think the solution is to upgrade the packed version of Dompdf.

[dimd13]

+1

[r0ber70]

+1

Meanwhile, is there a way to get around this?