I am sorry but, had you searched, you would have found that ######... means all userdata has been lost from the file.
Your only hope is to see
[Tutorial] How to find and un-delete Writer temporary files for
a) detailed instructions on how to recover your file as it was when you last opened or saved it, or as it was when it was last saved with AutoRecovery.
b) how to find previous versions of the file in the folder it is located in, but which have since been deleted.
c) how to un-delete the temporary files Writer wrote while you were editing the file, and then deleted. This will recover your file as it was when you last opened or you last saved it and is probably your best hope.
As a new poster you will find much useful information in the
Writer FAQ, the
Writer Tutorials, the up to date
Writer guide and the
Writer Manual. May I suggest you bookmark the pages.
Press F1 to access the Help screen and search for your problem
The chapter headings in the manual are:
1 - Introducing W
riter
2 - Setting up W
riter
3 - Working with T
ext
4 - F
ormatting P
ages
5 - P
rinting, E
xporting, F
axing and E-M
ailing
6 - Introduction to S
tyles
7 - Working with S
tyles
8 - Working with G
raphics
9 - Working with T
ables
10 - Working with T
emplates
11 - Using M
ail M
erge
12 - T
ables of C
ontents, I
ndexes and B
ibliographies
13 - Working with M
aster D
ocuments
14 - Working with F
ields
15 - Using F
orms in W
riter
16 - Customizing W
riter – K
eyboard s
hortcuts.
When a pop-up window opens, click the Help button for extensive help on that function - it is often more comprehensive than the manual.