Update to v65 from v64 get error


The version that is already installed on my server is v64, and I want to update it to v65. I ran the following instruction on my terminal server, but I got the following error:

`curl -s https://mailinabox.email/setup.sh | sudo bash

fatal: not a git repository (or any of the parent directories): .git
bash: line 76: [: v65: unary operator expected
bash: line 87: setup/start.sh: No such file or directory

Please help me.

What about:
curl -s https://mailinabox.email/setup.sh | sudo -E bash

-E, --preserve-env
Indicates to the security policy that the user wishes to pre‐
serve their existing environment variables. The security
policy may return an error if the user does not have permis‐
sion to preserve the environment.

Give it ago, nothing to lose.