All newspapers get things wrong some of the time. With the best of intentions and best of skills, it ... just happens because the world is just too complex to always be 100% accurate. Of course they should strive to be accurate all of the time, but we also need to be realistic. This applies even more to warzones.
What matters is how often this happens and what the response is when it happens. As far as I know, Al Jazeera is not significantly worse than anyone else here. There's a difference between "spreading misinformation" and "being wrong every once in a while".
The problem with sites like "honest reporting" is that they take these incidents, completely ignore (or outright defend) all the types their side has been wrong on this type of stuff, and then construct a narrative that "proves" that "the other side" is merely a malicious cluster of evil that seeks to spread evil for evil's sake. This is exactly the type of dehumanizing hyper-partisanship that got us in this mess in the first place.