Understanding Vault Error 30018 "unable to find"

Vault 5.3, 5.4, 5.5, 6.0, 6.1
What does Vault Error 30018 mean?
 
16:25:24 127.0.0.1:53257 open connection
16:25:24 127.0.0.1:53257 request [DB=JP&M=84&Account=15001425&Date=2005%2F08%2F15&Page=2&D=0&Rez=640&DT=AFP&DF=20051027011600-jt-bill3-wtr&DO=0000005000000000&O=0]
16:25:24 ERROR 30018: unable to find coded font [3GJT\X1MB019E]
16:25:24 ERROR 30018: unable to find coded font [3GJT\X1MB10EE]
16:25:24 ERROR 30018: unable to find coded font [3GJT\X1MB100E]
16:25:24 ERROR 30018: unable to find coded font [3GJT\X1MN00AE]
16:25:24 ERROR 30018: unable to find coded font [3GJT\X1MN00HE]
16:25:24 ERROR 30018: unable to find coded font [3GJT\X1MN000E]
16:25:24 ERROR 30018: unable to find coded font [3GJT\X1MN017E]
16:25:24 ERROR 30018: unable to find coded font [3GJT\X1MN019E]
16:25:24 ERROR 30018: unable to find coded font [3GJT\X1MN108E]
16:25:24 ERROR 30018: unable to find coded font [3GJT\X1MN11AE]
16:25:24 ERROR 30018: unable to find coded font [3GJT\X1MZ100E]
16:25:24 ERROR 10324: file cache could not retrieve file [3GJT\O1JTPS03] from server
16:25:24 ERROR 10325: file cache cannot open file [3GJT\O1JTPS03] [GetLastError=2]
16:25:24 ERROR 10324: file cache could not retrieve file [3GJT\S1WV002] from server
16:25:24 ERROR 10325: file cache cannot open file [3GJT\S1WV002] [GetLastError=2]
16:25:24 127.0.0.1:53257 close connection

This error occurs if Vault cannot find resources from its resources library, with using data with non embedded resources.
 
You must check the Server/Profile.ini file for the correct resource path, and make sure that with AFP that the resources have no extension on the files.

In this case  [GetLastError=2] is a Windows OS error that means the system cannot find the file specified.

i.e.,
 
C:\>net helpmsg 2
 
The system cannot find the file specified.
C:\>
 
UPDATED:  March 26, 2020