Https://export.dhtmlx.com/scheduler has something wrong on 2021/01/18

I tried to export my schedules as PDF on https://export.dhtmlx.com/, but it returned an error.
Could you fix it?

Hello @plasma0713,

It’s hard to suggest what occurred the issue without the example of data on which the export occurred the error.

Could you please provide it, or reproduce the issue in our snippet tool:
http://snippet.dhtmlx.com/5/e38942766

Steps to reproduce: open the snippet => reproduce the issue on “HTML”/“Code” tabs => click the “Share” button => post here or send me a new link?