FATAL ERROR: out of memory, when openning Specific Drawing

I have a weird problem which I'm not sure if it's a AutoCAD problem or a network issue. We are 7 drafters and our drawings are saved on a Network. We have some drawings that at some point kind of get corrupted and won't open on any of the 7 computers. Any other drawing will open fine with no error, but when we try to open the "corrupted" drawing we instantly get the (FATAL ERROR: Out of memory) message and can't do nothing with it.

The drawings are really simple and not a big file (228ko and 473ko)

It's the 2nd time this happen withing 3 days on 2 different .dwg. The first time, we were able to open the drawing but can't do anything in it. Even draw a simple line was resulting in AutoCAD to give the message. The .bak was also unusable but I've been able to insert the corrupted drawing as an XREF in a new DWG, bind it and explode it, but the 2nd time I wasn't able to insert it as a XREF but we were lucky enough that the .BAK was up to date and not corrupted.

I've attached the drawing with this post.

Thanks

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