ep_tables4 started failing withoutany upgrade in the plugin

[SubhasishDey]

I had a project which used ep_tables4, and that worked fine, and suddenly it starts failing with the below error

[2021-02-28 02:17:15.969] [WARN] client - Uncaught TypeError: Cannot read property '0' of undefined -- {
  errorId: 'GFO1guvRKuzjWlVOf0PS',
  type: 'Uncaught exception',
  msg: "Uncaught TypeError: Cannot read property '0' of undefined",
  url: 'http://192.168.99.100:9001/p/test',
  source: 'http://192.168.99.100:9001/javascripts/lib/ep_etherpad-lite/static/js/ace2_inner.js?callback=require.define&v=dc2a41f2',
  linenumber: 3,
  userAgent: 'Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.182 Safari/537.36',
  stack: "TypeError: Cannot read property '0' of undefined\n" +
    '    at AttributeManager.setAttributesOnRange (http://192.168.99.100:9001/javascripts/lib/ep_etherpad-lite/static/js/ace2_inner.js?callback=require.define&v=dc2a41f2:50:708)\n' +
    '    at Object.Ace2Inner.x.ace_performDocumentApplyAttributesToRange (http://192.168.99.100:9001/javascripts/lib/ep_etherpad-lite/static/js/ace2_inner.js?callback=require.define&v=dc2a41f2:3:39309)\n' +
    '    at Object.performDocApplyTblAttrToRow (eval at j (http://192.168.99.100:9001/static/js/require-kernel.js?v=dc2a41f2:10:1408), <anonymous>:5:13234)\n' +
    '    at Object.addTable (eval at j (http://192.168.99.100:9001/static/js/require-kernel.js?v=dc2a41f2:10:1408), <anonymous>:5:6128)\n' +
    '    at Object.doDatatableOptions (eval at j (http://192.168.99.100:9001/static/js/require-kernel.js?v=dc2a41f2:10:1408), <anonymous>:5:4259)\n' +
    '    at Qn (http://192.168.99.100:9001/javascripts/lib/ep_etherpad-lite/static/js/ace2_common.js?callback=require.define&v=dc2a41f2:49:7520)\n' +
    '    at Object.<anonymous> (http://192.168.99.100:9001/javascripts/lib/ep_etherpad-lite/static/js/ace2_common.js?callback=require.define&v=dc2a41f2:49:7948)\n' +
    '    at Object.ace_doDatatableOptions (http://192.168.99.100:9001/javascripts/lib/ep_etherpad-lite/static/js/ace2_common.js?callback=require.define&v=dc2a41f2:49:1023)\n' +
    '    at eval (eval at j (http://192.168.99.100:9001/static/js/require-kernel.js?v=dc2a41f2:10:1408), <anonymous>:5:1609)\n' +
    '    at o (http://192.168.99.100:9001/javascripts/lib/ep_etherpad-lite/static/js/ace2_inner.js?callback=require.define&v=dc2a41f2:3:5925)'
}

Steps to reproduce the behavior:
Here is my docker file:

FROM etherpad/etherpad:1.8.7
RUN bin/installDeps.sh
RUN npm install ep_tables4
EXPOSE 9001
ENTRYPOINT bin/run.sh

Expected behavior
The table component should continue to work as it was.

Screenshots
If applicable, add screenshots to help explain your problem.

Server (please complete the following information):

• Etherpad version: latest / stable / 1.8.11
• OS: Debian GNU/Linux 10 (buster)
• Node.js version (node --version): 14.16.0
• npm version (npm --version):6.14.11

Desktop (please complete the following information):

• OS: [e.g. iOS] windows 10
• Browser [e.g. chrome, safari] : chrome
• Version [e.g. 22]: 88

Additional context
I am aware that is plugin specific, but the plugin was not changed. Any hints will be helpfull as well.

[rhansen]

Does it work with a previous version of Etherpad?

[SubhasishDey]

It doesnot work with previous versions(1.8.7) also now.
But was working earlier...
Not sure if any dependencies with node and npm...

[rhansen]

Are you sure it doesn't work with 1.8.7? There is a bug that was introduced in 1.8.8 in that call stack from your logs.