Move to new server

Alright, so I have done some research but haven't seen an exact answer that I think will work for me.

I got a new server and I know I can just put the USB stick from my old server into the new one but I've been having issues with the current one and I want to completely rebuild. I am thinking about setting up the new server and then moving all my media and files over to the new one manually. Is there a best way to do this? Am I overthinking this?

FYI - The issues I've been having are the following being dumped into my syslog constantly. 

Feb 20 10:37:57 Chantry-Server nginx: 2023/02/20 10:37:57 [error] 3646#3646: *117225 limiting requests, excess: 20.776 by zone "authlimit", client: 10.0.0.76, server: , request: "PROPFIND /login HTTP/1.1", host: "chantry-server"
Feb 20 10:37:57 Chantry-Server nginx: 2023/02/20 10:37:57 [error] 3646#3646: *117231 limiting requests, excess: 20.665 by zone "authlimit", client: 10.0.0.76, server: , request: "PROPFIND /login HTTP/1.1", host: "chantry-server"
Feb 20 10:37:57 Chantry-Server nginx: 2023/02/20 10:37:57 [error] 3646#3646: *117233 limiting requests, excess: 20.612 by zone "authlimit", client: 10.0.0.76, server: , request: "PROPFIND /login HTTP/1.1", host: "chantry-server"
Feb 20 10:38:48 Chantry-Server kernel: vethbacf0a7: renamed from eth0
Feb 20 10:38:48 Chantry-Server kernel: docker0: port 1(veth42c3bb4) entered disabled state
Feb 20 10:38:50 Chantry-Server  avahi-daemon[4321]: Interface veth42c3bb4.IPv6 no longer relevant for mDNS.
Feb 20 10:38:50 Chantry-Server  avahi-daemon[4321]: Leaving mDNS multicast group on interface veth42c3bb4.IPv6 with address fe80::7cb8:1ff:fe47:fbd8.
Feb 20 10:38:50 Chantry-Server kernel: docker0: port 1(veth42c3bb4) entered disabled state
Feb 20 10:38:50 Chantry-Server kernel: device veth42c3bb4 left promiscuous mode
Feb 20 10:37:57 Chantry-Server nginx: 2023/02/20 10:37:57 [error] 3646#3646: *117225 limiting requests, excess: 20.776 by zone "authlimit", client: 10.0.0.76, server: , request: "PROPFIND /login HTTP/1.1", host: "chantry-server"
Feb 20 10:37:57 Chantry-Server nginx: 2023/02/20 10:37:57 [error] 3646#3646: *117231 limiting requests, excess: 20.665 by zone "authlimit", client: 10.0.0.76, server: , request: "PROPFIND /login HTTP/1.1", host: "chantry-server"
Feb 20 10:37:57 Chantry-Server nginx: 2023/02/20 10:37:57 [error] 3646#3646: *117233 limiting requests, excess: 20.612 by zone "authlimit", client: 10.0.0.76, server: , request: "PROPFIND /login HTTP/1.1", host: "chantry-server"
Feb 20 10:38:48 Chantry-Server kernel: vethbacf0a7: renamed from eth0
Feb 20 10:38:48 Chantry-Server kernel: docker0: port 1(veth42c3bb4) entered disabled state
Feb 20 10:38:50 Chantry-Server  avahi-daemon[4321]: Interface veth42c3bb4.IPv6 no longer relevant for mDNS.
Feb 20 10:38:50 Chantry-Server  avahi-daemon[4321]: Leaving mDNS multicast group on interface veth42c3bb4.IPv6 with address fe80::7cb8:1ff:fe47:fbd8.
Feb 20 10:38:50 Chantry-Server kernel: docker0: port 1(veth42c3bb4) entered disabled state
Feb 20 10:38:50 Chantry-Server kernel: device veth42c3bb4 left promiscuous mode
Feb 20 10:38:50 Chantry-Server kernel: docker0: port 1(veth42c3bb4) entered disabled state
Feb 20 10:38:50 Chantry-Server  avahi-daemon[4321]: Withdrawing address record for fe80::7cb8:1ff:fe47:fbd8 on veth42c3bb4.
Feb 20 10:38:54 Chantry-Server kernel: docker0: port 1(veth29df175) entered blocking state
Feb 20 10:38:54 Chantry-Server kernel: docker0: port 1(veth29df175) entered disabled state
Feb 20 10:38:54 Chantry-Server kernel: device veth29df175 entered promiscuous mode
Feb 20 10:39:02 Chantry-Server kernel: eth0: renamed from vetha71675b
Feb 20 10:39:02 Chantry-Server kernel: IPv6: ADDRCONF(NETDEV_CHANGE): veth29df175: link becomes ready
Feb 20 10:39:02 Chantry-Server kernel: docker0: port 1(veth29df175) entered blocking state
Feb 20 10:39:02 Chantry-Server kernel: docker0: port 1(veth29df175) entered forwarding state
Feb 20 10:39:03 Chantry-Server  avahi-daemon[4321]: Joining mDNS multicast group on interface veth29df175.IPv6 with address fe80::64ea:caff:fe53:d85d.
Feb 20 10:39:03 Chantry-Server  avahi-daemon[4321]: New relevant interface veth29df175.IPv6 for mDNS.
Feb 20 10:39:03 Chantry-Server  avahi-daemon[4321]: Registering new address record for fe80::64ea:caff:fe53:d85d on veth29df175.*.
Feb 20 10:38:50 Chantry-Server kernel: docker0: port 1(veth42c3bb4) entered disabled state
Feb 20 10:38:50 Chantry-Server  avahi-daemon[4321]: Withdrawing address record for fe80::7cb8:1ff:fe47:fbd8 on veth42c3bb4.
Feb 20 10:38:54 Chantry-Server kernel: docker0: port 1(veth29df175) entered blocking state
Feb 20 10:38:54 Chantry-Server kernel: docker0: port 1(veth29df175) entered disabled state
Feb 20 10:38:54 Chantry-Server kernel: device veth29df175 entered promiscuous mode
Feb 20 10:39:02 Chantry-Server kernel: eth0: renamed from vetha71675b
Feb 20 10:39:02 Chantry-Server kernel: IPv6: ADDRCONF(NETDEV_CHANGE): veth29df175: link becomes ready
Feb 20 10:39:02 Chantry-Server kernel: docker0: port 1(veth29df175) entered blocking state
Feb 20 10:39:02 Chantry-Server kernel: docker0: port 1(veth29df175) entered forwarding state
Feb 20 10:39:03 Chantry-Server  avahi-daemon[4321]: Joining mDNS multicast group on interface veth29df175.IPv6 with address fe80::64ea:caff:fe53:d85d.
Feb 20 10:39:03 Chantry-Server  avahi-daemon[4321]: New relevant interface veth29df175.IPv6 for mDNS.
Feb 20 10:39:03 Chantry-Server  avahi-daemon[4321]: Registering new address record for fe80::64ea:caff:fe53:d85d on veth29df175.*.