Git Extensions: Win32 error 487: Couldn't reserve space for cygwin's heap, Win32 error 0-open source projects sol/reserve

Git Extensions: Everything was working fine until yesterday.

But suddenly I am get this error when I try to pull some repositories using git extensions

C:\Program Files\Git\bin\git.exe pull --progress "origin" 
Done
    0 [main] us 0 init_cheap: VirtualAlloc pointer is null, Win32 error 487
AllocationBase 0x0, BaseAddress 0x68560000, RegionSize 0x390000, State 0x10000
C:\Program Files\Git\bin\sh.exe: *** Couldn't reserve space for cygwin's heap, Win32 error 0

It is happening for all the repositories which I have cloned. But, my git bash is working fine. I don’t have any idea what is going on. Any idea as to why this is happening?