Receiving error "unable to install package" on QNAP TS-462 server saying digital signature signature invalid

[mcdonaldjr1 0]

I downloaded "emby-server-qnap_4.8.11.0_x86_64 (1).qnap" install from ://emby.media/qnap-server.html.  When i try to run the manual install on QNAP  I receive an error "unable to install the package.  The error log shows the message below: 

Error    2025-05-11    19:24:14    ---    ---    Web Desktop    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36    App Center    App Installation    [App Center] Failed to install EmbyServer. The digital signature is invalid. To proceed with installation, go to App Center > Settings > General, and then select "Allow installation of applications without a valid digital signature". 

Is there another EMBY package for QNAP I can download from another site?  If not, how do I resolve this issue?

[Luke 42077]

Quote

To proceed with installation, go to App Center > Settings > General, and then select "Allow installation of applications without a valid digital signature". 

Hi, did you do this?