Error code: 0xE001F90F Description: Product plugin missing

Hello Louise,
We regret for the inconvenience caused. Please click this link http://aa-download.avg.com/filedir/util/AVG_Remover.exe to download and run the AVG Remover tool to remove all the traces of the AVG.
1. Please select the AVG products which are shown in the remover tool window and then start removal process.
2. After the remover tool process is successfully finished, restart your computer.
3. After the restart,  manually delete the AVG Remover folder in the C drive of My computer.

suddenly started getting errors like this and need license number. dont know why. wont uninstall

4. Once uninstalled download the installation file using the link : http://www.avg.com/download to reinstall your AVG program.
5. Run the downloaded file to start the installation process.
6. Follow the instructions on your screen.  
7. Complete the installation and restart your computer.
If you are still facing any error message please provide us with the screenshot so that we could analyze the issue more better. Please follow the instructions on the article http://avgclick.me/getscreenshot to create the screenshot.
Please feel free to get back to us for further assistance.
Thank you.

Louise, For your info, just in case that you are unaware, you can post the screenshot here in your topic. Click on 'Answer' & then click on the 'Image' [mountain symbol] & follow the instructions. 
AVG Guru

Hello Louise,
We regret for the inconvenience caused. Please click this link http://aa-download.avg.com/filedir/util/AVG_Remover.exe to download and run the AVG Remover tool to remove all the traces of the AVG.
1. Please select the AVG products which are shown in the remover tool window and then start removal process.
2. After the remover tool process is successfully finished, restart your computer.
3. After the restart,  manually delete the AVG Remover folder in the C drive of My computer.