Website is stuck in maintenance mode after updating the plugins.

The website is 3icon.com. It is a multi-site install.

I haven't checked the website for a month before today. When I went to check the admin dashboard, it notified me about plugin and theme updates. So I first decided to update the plugins. I went to the WPMUDEV dashboard to update the plugins. When I clicked Update all plugins, It showed a blank page with the following note:

Briefly unavailable for scheduled maintenance. Check back in a minute.

I thought it was unusual, but I waited for a couple of minutes. The site still displays that note :slight_frown:

I need help! I'm not exactly sure what I did wrong since when i update WPMUDEV plugins, I do it directly on the WPMUDEV dashboard by just clicking the button that says update all plugins.