Ignition Gateway is FAULTED 8.1.5

Okay, it's faulted because of this error:

INFO   | jvm 1    | 2023/03/01 14:59:05 | E [IgnitionGateway               ] [17:59:05]: Error during context startup. 
INFO   | jvm 1    | 2023/03/01 14:59:05 | java.lang.NullPointerException: null
INFO   | jvm 1    | 2023/03/01 14:59:05 | 	at java.base/java.io.ByteArrayInputStream.<init>(Unknown Source)
INFO   | jvm 1    | 2023/03/01 14:59:05 | 	at com.inductiveautomation.ignition.common.xmlserialization.deserialization.XMLDeserializer.deserialize(XMLDeserializer.java:248)
INFO   | jvm 1    | 2023/03/01 14:59:05 | 	at com.inductiveautomation.ignition.gateway.db.namedquery.NamedQueryExecutor.lambda$initializeQueries$0(NamedQueryExecutor.java:96)
INFO   | jvm 1    | 2023/03/01 14:59:05 | 	at java.base/java.util.ArrayList.forEach(Unknown Source)
INFO   | jvm 1    | 2023/03/01 14:59:05 | 	at com.inductiveautomation.ignition.gateway.db.namedquery.NamedQueryExecutor.initializeQueries(NamedQueryExecutor.java:92)
INFO   | jvm 1    | 2023/03/01 14:59:05 | 	at com.inductiveautomation.ignition.gateway.db.namedquery.NamedQueryExecutor.initializeQueries(NamedQueryExecutor.java:82)
INFO   | jvm 1    | 2023/03/01 14:59:05 | 	at com.inductiveautomation.ignition.gateway.db.namedquery.NamedQueryExecutor.<init>(NamedQueryExecutor.java:76)

You must have restored a backup or imported a named query resource from a future version of Ignition.

You can call support and get their help trying to track it down and fix it, or you can just go ahead and upgrade to the latest version of Ignition and that should make things start working.

In general, it's not safe to assume Ignition is "forwards compatible", meaning you should not import anything from a newer version into an older version.

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