If noone else got these messageas and knows by chance which on it is: No, we cannot, as you did not tell us what addons you are using
Try to check the settings of addons that got to do explicitly with combat/battlegrounds/PVP first.
Or: Disable half of your addons from the top and check if the messages are gone. if not disable the other half at the bottom and check if they are gone.
Then, if one if the half is removing the messages, enable this total half of your addons again and just go on doing the same within those halfs: Enable the half of the half (1/4 of your addons) and so on until you are able to tell which addons does this.
Or:
Install Notepad++ editor, use it's mentu Search->Search in files.
Select the live/AddOns folder and search for some of the text hich is shown, like "Block mitigation" or other text. It will scan all folders and files and tell you where it found the text then.