Transparent Text in Image after Camera tracking process

Hi there, I have been playing around and practicing in the field of camera tracking for quite a while. Here and there I would play around with some clips and I believe that I have got it down. Now, the part that I am stuck on is that when any particular image of the entire video clip is rendered, the text which I have inserted is transparent/see through/and is a light shade of gray (transparency). This is probably such a simple fix but I went through multiple settings and just can’t figure out the solution. Please help! It would be great! Thank you for your time!