Sony Smartwatch 3 disconnecting/unpairing all the time.

Hey,

I've got really weird problem for like a month or two. My Sony Smartwatch 3 (or my Sony Xperia Z3 Compact) doesn't keep the pairing info or something. My phone is getting notifications like every now and then about pairing my watch. I get at least 3 notifications per hour.

The notification disappears in about 30 seconds. It's pretty annoying because my phone is beeping and I think I got a message or something, but it's always this notification. Here is a picture of the notification (I changed the language of my phone to English so you can read it).

I already put my phone in the factory settings and reset the watch and paired it again, but it's still doing it.

Is there any app that may be causing it? I don't really know how to troubleshoot this issue.

Thanks for any reply and have a great day,

Mavi