RSS Feed/News inet_pton(): Argument #1 ($ip) must not contain any null bytes

[ENXF NET]

I am trying to import users, nodes, threads and posts from another XF 2.3.8 forum to an existing XF 2.3.8.
However, I keep getting the error below. Any ideas?

Code:

php cmd.php xf:import
Starting import from XenForo 2.3...
 - Step 1 of 8: User groups               00:00:00 [4]
 - Step 2 of 8: Custom user fields        00:00:00 [0]
 - Step 3 of 8: Users                     00:00:00 [1]
 - Step 4 of 8: Nodes                     00:00:00 [2]
 - Step 5 of 8: Thread prefixes           00:00:00 [0]...

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