Theme Version 10.4 is not Working Fine

Hello, I updated the theme to the latest version 10.4.
After updating site shows only a white screen.
Upon investigation, I find the following error message in the error log:
it was displaying as the issue was with the plugin ([01-Apr-2021 15:31:29 UTC] Use of undefined constant TDC_PATH_LEGACY – assumed ‘TDC_PATH_LEGACY’ (this will throw an Error in a future version of PHP) in /home3/urdutube/public_html/wp-content/plugins/td-composer/td-composer.php on line 209)
I checked in detail, I updated all plugins, compulsory for the theme.
I also update the system as per requirements as:
System Status
PHP Version
7.2.34
PHP Memory Limit
1 GB
PHP Execution Time
300000
PHP Max Input Vars
100000
But all in vain, and my site shows only a white blank page.
I downgraded to the older version.
Please recheck the plugin error, because when I disable the Tag Div Composer Plugin it works to show my site pages. But the coding and designing of the site go too rough and dull.
Plz find what is issue in the Tag Div Composer Plugin for theme version 10.4.
Thanks

Hello, I updated the theme again,
when I update the theme as well as I update all the required plugins, but as a result, my website’s layout becomes only a blank white screen as shown in the screenshot below:
https://paste.pics/c54a2743a2dfa9743b57d2c99d3d428b
Bluehost’s technicians said the blank screen of my website layout is due to the plugin (Tag Div Composer).
You do not give me the link where I can get Tag Div Composer to see if it works fine.
However, I am now again downgrading the theme’s version to 10.3.9.
I am also seeing this error when I open a post link to my site
https://www.urdutubes.net/2021/03/rain-life-cycle-fitrat-ki-nishaniyan.html
https://paste.pics/085bf8b56352d5b9bafba2c56aa775c4
I already sent you the username and password to see what is the result of update 10.4.

Hey aamirmehmood7000,

Was this able to be fixed for you as I’m getting the same error and only PHP error being thrown about Line 209.

Thank you!