Some Gmail users are frequently encountering the error codes #2013 and #2014 (Oops the system encountered a problem) when using the Web interface of Gmail. This problem is not OS specific as it’s reported to occur on Windows 7, Windows 8.1, and Windows 10.
Click on Apply Google ChromeOnce you’re inside the About Google tab, your browser will begin scanning for a new browser version.Update Google ChromeIf a new browser version is found, it will automatically get downloaded and installed. Once the operation is complete, restart your computer and see if the problem is resolved at the next startup.
B. Update Mozilla Firefox
Open up Mozilla Firefox, then click on the action button (top-right corner of the screen).Next, from the main menu of your browser, click on Help to bring up the sub-tab, then click on About Firefox from the context menu.
Accessing the Help menu of FirefoxInside the About Mozilla Firefox menu, click on Restart and update the Firefox button (if a new version is available).Wait for the operation to complete, then click Yes at the User Account Control (UAC) when prompted to do so.
Updating Firefox to the latest version availableOnce your browser is updated, restart Mozilla Firefox and see if the problem is resolved.
Method 5: Disable Ad-Blocker (if applicable)
As it turns out, this problem can also occur due to the fact that Gmail doesn’t play nice with certain Ad-blockers imposed at a browser level.
According to some affected users, if you’re encountering the #2013 or #2014 errors, you might be able to fix this problem by disabling or uninstalling your ad-blocker from your Extensions or Add-ons tab.
But keep in mind that the exact instructions on doing so will be different depending on the browser that you’re using.
On Google Chrome, you can go ahead and disable the problematic ad-blocker simply by typing ‘chrome://extensions/‘ inside the navigation bar and pressing Enter. If you prefer the GUI approach, you can access this menu by going to Settings > More Tools > Extensions.
Once you manage to reach the correct Extension menu, scroll down through the list of extensions, and locate the Ad-blocking extension. When you see it, you can disable it by using the On/Off toggle or you can uninstall it via the associated button.
Removing or disabling Adblock
If you’re using Mozilla Firefox, you can access the Addons tab by typing “about:addons” inside the navigation bar and pressing Enter. Additionally, you can access the same menu by clicking on the action menu and clicking on Extensions.
Once you’re inside the add-ons menu, locate the ad-blocking addon that you think might be causing the problem and disable it or uninstall it.