yes, this dialog…
I assume, depend on where you fly ( e.g try London 
) , this amount is not enough. I recommend to made a manual setting as former mentioned ( max 32 GIG should more a as enough, set Minimum to e.g 4Gig ).
Can you tell how much space is left on your hard drive ?
If this not helps, might be there are also the network relevant settings relevant. But step by step.
Note: in former release I had say’d you not need to aware of pagefile in case 32GIG RAM. But lot of user-reports since 1.13.16.0 relativate this a bit.
Hi,
3x is bit to much in case you own 32GIG RAM. These “3x” was very old rules and mostly these one for which the “system managed” is alllowed to increase maximal the pagefile.
Here is one of the rule ( not 100% whether up2date )
Maximum page file size : 3 × RAM or 4 GB, whichever is larger. This is then limited to the volume size ÷ 8. However, it can grow to within 1 GB of free space on the volume if required for crash dump settings.
Important is that this rule is aware of harddisc space.