尝试使用DomPDF将html转换为pdf时出错

I'm using the Barryvdh/laravel-dompdf which is a laravel 5 wrapper for the domPDF library (Link to GIT). But after I ran a composer update on my project, I get a error message when I try to convert a html file to a pdf file. The error is as follow FatalErrorException in class.pdf.php line 1876: Call to undefined method Cpdf::o_rapport(). I couldn't find a solution for the specific problem so I tried to downgrade the version of the Barryvdh/laravel-dompdfand run composer again, but that didn't help. So after that I looked at the stacktrace and tried finding the piece of code that fires the FatalError, but nowhere in the code the method o_rapport() is being called, even if I use the search function of my IDE to search my complete project for this method, no reference are found so that is a dead end aswell.

Now I want to ask if someone did encounter the same problem as me and how to fix this.