Thank you for your reply. My server has 256Mb, but it seems is not enough because the process seems to be interrupted. If I do the same operation on my local test server, it works perfectly. So I don’t know how much memory would be recommended to carry out this task without the mentioned problem.
Something similar happened to me, and this solved it, review this:
https://ww.wp.xz.cn/support/topic/cant-update-existing-locations/
Done and it worked. Thank you so much for the support.
I can not even add more locations
