I have error. Help me please.
[11:58:59] [pool-9-thread-1/ERROR]: [PermissionsEx] Error occurred with PermissionsEx! Please post it to http://git.io/You are being redirected.. Full error:
ru.tehkode.permissions.exceptions.PermissionBackendException: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'prefix' in 'field list'
at ru.tehkode.permissions.backends.sql.SQLBackend$3.performUpdate(SQLBackend.java:186)
at ru.tehkode.permissions.backends.PermissionBackend.performSchemaUpdate(PermissionBackend.java:90)
at ru.tehkode.permissions.backends.sql.SQLBackend.(SQLBackend.java:192)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at ru.tehkode.permissions.backends.PermissionBackend.getBackend(PermissionBackend.java:392)
at ru.tehkode.permissions.backends.PermissionBackend.getBackend(PermissionBackend.java:367)
at ru.tehkode.permissions.PermissionManager.createBackend(PermissionManager.java:624)
at ru.tehkode.permissions.PermissionManager.setBackend(PermissionManager.java:606)
at ru.tehkode.permissions.PermissionManager.initBackend(PermissionManager.java:693)
at ru.tehkode.permissions.PermissionManager.(PermissionManager.java:67)
at ru.tehkode.permissions.bukkit.PermissionsEx.onEnable(PermissionsEx.java:175)
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321)
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:340)
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405)
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugin(CraftServer.java:357)
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.enablePlugins(CraftServer.java:317)
at net.minecraft.server.v1_8_R3.MinecraftServer.s(MinecraftServer.java:414)
at net.minecraft.server.v1_8_R3.MinecraftServer.k(MinecraftServer.java:378)
at net.minecraft.server.v1_8_R3.MinecraftServer.a(MinecraftServer.java:333)
at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:263)
at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:525)
at java.lang.Thread.run(Thread.java:745)
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'prefix' in 'field list'
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:407)
at com.mysql.jdbc.Util.getInstance(Util.java:382)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1052)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3593)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3525)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1986)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2140)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2626)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2111)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2273)
at ru.tehkode.libs.org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:96)
at ru.tehkode.libs.org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:96)
at ru.tehkode.permissions.backends.sql.SQLBackend$3.performUpdate(SQLBackend.java:161)
... 24 more

Unfortunately PermissionsEx is currently unmaintained and no further updates are planned. Because of this, all pull requests are being closed. If you are looking for an actively maintained permissions plugin, take a look at LuckPerms. It is compatible with major server platforms and can import data from PEX.

I believe this issue has been reported hundreds of times and the solution is to look through your database and ensure that there is only one entry for schema-version: 1.

@zml2008 can confirm or deny this solution, or you can look through the closed tickets here. I haven't used SQL in so long that I have forgotten pretty much everything about it.

Where in SQL to add schema-version: 1?
File exists schema-version: 1 (when i import file to MySQL)

@Stormbow
@zml2008
?

@zml2008 can confirm or deny this solution, or you can look through the closed tickets here. I haven't used SQL in so long that I have forgotten pretty much everything about it.

That means you'll have to wait for zml to reply. He knows more about SQL than I do. Sorry.

Are you attempting to run multiple severs a la Bungeecord?

@zml2008 i need help!

@Stormbow
I have SkyWars & Faction server.
And I need permission on MySQL.
All works, but at start the error constantly gets out

If you don't know how to use SQL, best not use SQL.

Woops, wrong button.