Can't upload/open attachments

AVG Protection
3

Hello Alex,
Thank you for reaching AVG Support Community.
We sincerely apologize for the difficulties you are currently experiencing.
We will certainly look into it and help you.
Please let us know, how do you access your emails? Are you using any web browser or email client like Outlook, Thunderbird, etc.,? 
Also, please let us know the operating system of your computer.
To narrow down the issue, please turn off the AVG Secure VPN, send any test email with attachments and check the status.
If it works, please follow the steps mentioned in the below article and check if it helps,
Troubleshooting for sending emails when connected via AVG Secure VPN
If it didn't work, please temporarily disable the AVG Internet Security components one by one and narrow down the issue.
Temporarily disabling AVG AntiVirus protection
Thank you.

2

Hello Alex,
Thank you for reaching AVG Support Community.
We sincerely apologize for the difficulties you are currently experiencing.
We will certainly look into it and help you.
Please let us know, how do you access your emails? Are you using any web browser or email client like Outlook, Thunderbird, etc.,? 
Also, please let us know the operating system of your computer.
To narrow down the issue, please turn off the AVG Secure VPN, send any test email with attachments and check the status.
If it works, please follow the steps mentioned in the below article and check if it helps,
Troubleshooting for sending emails when connected via AVG Secure VPN
If it didn't work, please temporarily disable the AVG Internet Security components one by one and narrow down the issue.
Temporarily disabling AVG AntiVirus protection
Thank you.

1

I upgraded my AVG this morning to add AntiVirus and VPN, now I can't open email attachments and or upload an attachment to an email.