[03:49:28] [Server thread/INFO]: [eco] Enabling eco v6.37.1
[03:49:28] [Server thread/INFO]: [eco]
[03:49:28] [Server thread/INFO]: [eco] Loading eco
[03:49:28] [Server thread/INFO]: [eco] Loaded integrations: HolographicDisplays, Vault, PlaceholderAPI, WorldGuard
[03:49:28] [Server thread/INFO]: [eco] Scanning for conflicts...
[03:49:28] [Server thread/WARN]: [eco] squaremarker will likely conflict with eco! Reason: Kotlin shaded into jar
[03:49:28] [Server thread/WARN]: [eco] You can fix the conflicts by either removing the conflicting plugins, or by asking on the support discord to have them patched!
[03:49:28] [Server thread/WARN]: [eco] Only remove potentially conflicting plugins if you see Loader Constraint Violation / LinkageError anywhere
[03:49:28] [Server thread/INFO]: [eco]

Fix:
Shade and relocate kotlin.

GitHub link to eco:
https://github.com/Auxilor/eco