How to repair lag/glitch in an audio file.

I'm afraid that the short answer is a resounding no, as there are gaps in the information.

Let me put it like this; where is all the missing information coming from?

The other thing is that this doesn't look like an internet connection issue at all. It looks much more like the audio buffer running out - in other words much too small a buffer size. Try going to Edit>Preferences>Audio Hardware and increasing the size of it. It may, depending upon the driver you're using, be marked as :Latency. Whatever it is, it sounds as though it needs to be larger.