The attempted operation is prohibited because it exceeds the list view threshold for Document Lib

Sajith G H - Yes document libraries have the 5,000 item list view threshold.  This means that you have to configure views that display less than 5,000 items.   If you are navigating to the library system page it should show the error on that page and you shouldn't need to display using the F12 Dev tools.  It sounds like the page loads, but the library looks empty. That has me a little curious. 

You'll need to configure a view that displays less than 5,000 items and make it the default view.  Navigate to the Site Contents page, find the library.  The site contents page will display the number of items in the library. Is it over 5,000?  If not there is something else going on.   From the site contents page select the ellipsis | Settings for the library. This will load the library settings page.  This should get you started and allow you to create a view that displays less than 5,000 items. There are a bunch of good resources available online to help you work through this.  I just searched and the SharePoint Maven post looks good https://sharepointmaven.com/how-to-overcome-sharepoint-5000-item-limit-threshold/

Nate Chamberlain also put a nice page together:  https://natechamberlain.com/2018/05/21/how-to-resolve-sharepoint-list-view-threshold-error-the-view-cannot-be-displayed-because-it-exceeds-the-list-view-threshold/