Need to Solve Warnings and Errors in my Newspaper Theme

Hello Team,

I am facing some issues from the last days. When I search in the console under google chrome then it showing a number of warnings and errors. Please have a look at that screenshots https://prnt.sc/u2pm64

If you will observe then you will come to know that there are some javascript violation issue which impacts on site performance and speed. So I need to get it solved as early as possible. Secondly in my site https://www.tekkiwebsolutions.com/blog/ here it’s showing my old subdomain image with URL

https://blog.tekkiwebsolutions.com/wp-content/uploads/2020/04/47-1.jpg. also have a look at the screenshot. I have tried my best to find that source from each directory but I did not find it. So please take a look and let me know where I can solve those issues. If you need any access plz confirm me directly, I will share it with you but I need its solution on urgent bases. Please let me know.

I shall be grateful for your support and will update my positive feedback accordingly,

Thanks & Regards!
Sarbjit Singh

Hello Vlad,

Thanks for your response! Yes, we have migrated our server last month and added a staging server as well. We have just updated our WordPress version and plugins. Nothing else. Rest we are updating daily posts on blog posts. Kindly go through with those issues once and let us know the best solutions to improve site performance.

Regards!