unable to add new book

[AndyTesla]

I suppose that server doesn't run properly, which make it unable to add new book. Here is the error log for server image:

Here's my docker version:

Client: Docker Engine - Community
Cloud integration: v1.0.22
Version: 20.10.12
API version: 1.41
Go version: go1.16.12
Git commit: e91ed57
Built: Mon Dec 13 11:45:48 2021
OS/Arch: linux/amd64
Context: default
Experimental: true

Server: Docker Desktop
Engine:
Version: 20.10.12
API version: 1.41 (minimum version 1.12)
Go version: go1.16.12
Git commit: 459d0df
Built: Mon Dec 13 11:43:56 2021
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.4.12
GitCommit: 7b11cfaabd73bb80907dd23182b9347b4245eb5d
runc:
Version: 1.0.2
GitCommit: v1.0.2-0-g52b36a2
docker-init:
Version: 0.19.0
GitCommit:

de40ad0

and here's my docker-compose version:

docker-compose version 1.29.2, build 5becea4c
docker-py version: 5.0.0
CPython version: 3.7.10
OpenSSL version: OpenSSL 1.1.0l 10 Sep 2019

the project runs, but somehow unable to add new book:

after I click "Submit", there is no book showing in the webpage, press F5, still nothing

[hugh-nguyen]

Hmm im also geting this error

[hugh-nguyen]

I fixed it by upgrading flask in requirements.txt from 1.1.2 to 2.2.2