I am using VM Ware workstation 15 player in Win 10 laptop. The Guest OS is Ubuntu 18.04 LTS. I had the maximum size of the HD set to 40 GB. The current size has reached 39.4, and today the OS will not boot up. It tries to when I give the command, but is unable to complete the process of booting and freezes up. Please see the attached screen print to see where it reaches. I thought it was likely due to lack of space, so I created a copy of it on my external HDD and expanded the size from 40 to 46 GB. But still it is getting stuck during boot up. I do not have any backup of this and it contains important material, so I need to get it running. Help will be deeply appreciated.