mrtg - incorrect data

[Dubravka Radojevic <duca23 beotel yu>]

I have mrtg 2.9.17-8 installed on redhat linux 8.0 and I'm using it to
monitor a few routers traffic. Occasionally, incorrect data shows on the
graphs, as you can see it in a sample of a log file given bellow:  

1046266500 7066 5426 7168 5669
1046266200 7168 5278 7168 5278
1046265900 2085719 1523921 3324005 2428646	//incorrect data
1046265600 3324005 2428646 3324005 2428646	//incorrect data
1046265300 997201 728593 3324005 2428646	//incorrect data
1046265000 0 0 0 0
1046264700 3770 2788 6016 4449

When I tried to upgrade it to mrtg-2.9.25, it was receiving no data.

Can you help me to fix the problem?

Thanks