"threat secured" popup when going to a website ive always went to

[wizard6733]

I use a program to monitor airplanes in my area and as of yesterday when i view it, i keep getting a popup of "threat secured" whenever it tries to retrieve stock airplane photos from www.airport-data.com.  Is there a reason why airport-data.com is blacklisted and is there a way i can remove it from the list so i dont keep getting these popups? Thanks

[Pondus]

is there a way i can remove it from the list so i dont keep getting these popups?

https://forum.avast.com/index.php?topic=14433.msg1289438#msg1289438

[wizard6733]

thanks Pondus