Deepen 15.11 is not updated and LibreOffice is not installed, how to fix it?

Question

linux

Friends, ran into a problem.
Deepen 15.11 is not updated and LibreOffice is not installed from the office. store, how to fix?
When installing LibreOffice, it gives an error:

E: the Failed to the fetch packages.deepin.com/deepin/pool/main/m/mythes/libm ... Hash the Sum mismatch
The listed Hashes of expected file:
- the SHA256: ac474d25ebfafaff2623102882facfd8ec47df2416b492d35fb85d94fe0f486e
- the SHA1: e5b9045ee7ecb75af84d4bec35e0da676191207d [weak]
- MD5Sum: 9ff77b20f8262763676468459700af3a [weak ]
- Filesize: 8600 [weak]
Hashes of received file:
- SHA256: 6891bc0f54bc25c2050e498df7a261c1f23a8f56555ddf5c3453868de3a00eb9
- SHA1: 4e23c68eae16c872b35d03ea5c91b1067a56db70 [weak]
- MD5Sum: aceb2012392e096dd1211104e535c078 [weak]
- Filesize: 8588 [weak]
Last reported modification: Sat, 11 Apr 2020 6:06 :25 +0000