JLCPCB Gerber Viewer rejects an EasyEDA generated Gerber zip from this project:
https://easyeda.com/whiskyfan/linear-optical-interface-tube-audio-3-0
The user's post about it is here:
https://easyeda.com/forum/topic/Gerber-file-incorrect-c9ea7462d5ce4eb6bca89711bf62dc9e
This looks like a bug in the JLCPCB Gerber Viewer.
It reads OK in https://gerber-viewer.easyeda.com/
Its problem with filename, there can't be "&" in filename