Thank you for answering so fast.
To my understanding the warnings are not a issue.
But for the part where the spawn area doesn't load, please take into consideration
first, that my PC is powerful enough (gtx1070 and i7 6th generation) and it has enough RAM (16) to run the server and
second, that the "Preparing spawn area" screen doesn't log the same progress information multiple times as in the linked issue.
It only happens 4 times before the server eventually "starts". So it doesn't happen as often as in the issue you linked.
Thank you for answering so fast.
To my understanding the warnings are not a issue.
But for the part where the spawn area doesn't load, please take into consideration
first, that my PC is powerful enough (gtx1070 and i7 6th generation) and it has enough RAM (16) to run the server and
second, that the "Preparing spawn area" screen doesn't log the same progress information multiple times as in the linked issue.
It only happens 4 times before the server eventually "starts". So it doesn't happen as often as in the issue you linked.