Thanks!
I tried to find the problem by myself and possibly found it.
Lines 529 and 532:
theBody = theBody.replace(/<!--pixgridder:row\[cols=(.?)\] data(.+?)-->/g, '<div class="pix_builder_row" data-cols="$1" data$2>');
theBody = theBody.replace(/<!--pixgridder:column\[col=(.?)\] data(.+?)-->/g, '<div class="pix_builder_column" data-col="$1" data$2>');
I’am not a regex expert but could it be that there is a + missing?
theBody = theBody.replace(/<!--pixgridder:row\[cols=(.+?)\] data(.+?)-->/g, '<div class="pix_builder_row" data-cols="$1" data$2>');
theBody = theBody.replace(/<!--pixgridder:column\[col=(.+?)\] data(.+?)-->/g, '<div class="pix_builder_column" data-col="$1" data$2>');