What is this? MYSQL ERROR

Does anyone know what hell this means?

[ERROR] [MySQL] An critical error happens on MySQL for query "SELECT * FROM item
s {=}": Object reference not set to an instance of an object.   at MySqlConnecto
r.Core.ConnectionPool.GetPool (System.String connectionString) [0x0001a] in <149
068887d4e4bc08e7b4c05a59a923b>:0
  at MySql.Data.MySqlClient.MySqlConnection.CreateSessionAsync (System.Nullable`
1[T] ioBehavior, System.Threading.CancellationToken cancellationToken) [0x00012]
 in <149068887d4e4bc08e7b4c05a59a923b>:0
  at System.Runtime.CompilerServices.ConfiguredValueTaskAwaitable`1+ConfiguredVa
lueTaskAwaiter[TResult].GetResult () [0x0001e] in <4ac30274d31c4b8099694c24336fc
b22>:0
  at MySql.Data.MySqlClient.MySqlConnection.OpenAsync (System.Nullable`1[T] ioBe
havior, System.Threading.CancellationToken cancellationToken) [0x000bc] in <1490
68887d4e4bc08e7b4c05a59a923b>:0
  at MySQLAsync.Operation`1[TResult].ExecuteAsync (System.String query, System.C
ollections.Generic.IDictionary`2[TKey,TValue] parameters, CitizenFX.Core.Callbac
kDelegate callback, System.Boolean debug) [0x000aa] in <6f835765886c4fada3e5ffb1
ffcd6998>:0
[ERROR] [MySQL] An critical error happens on MySQL for query "SELECT * FROM item
s {=}": Object reference not set to an instance of an object.   at MySqlConnecto
r.Core.ConnectionPool.GetPool (System.String connectionString) [0x0001a] in <149
068887d4e4bc08e7b4c05a59a923b>:0
  at MySql.Data.MySqlClient.MySqlConnection.CreateSessionAsync (System.Nullable`
1[T] ioBehavior, System.Threading.CancellationToken cancellationToken) [0x00012]
 in <149068887d4e4bc08e7b4c05a59a923b>:0
  at System.Runtime.CompilerServices.ConfiguredValueTaskAwaitable`1+ConfiguredVa
lueTaskAwaiter[TResult].GetResult () [0x0001e] in <4ac30274d31c4b8099694c24336fc
b22>:0
  at MySql.Data.MySqlClient.MySqlConnection.OpenAsync (System.Nullable`1[T] ioBe
havior, System.Threading.CancellationToken cancellationToken) [0x000bc] in <1490
68887d4e4bc08e7b4c05a59a923b>:0
  at MySQLAsync.Operation`1[TResult].ExecuteAsync (System.String query, System.C
ollections.Generic.IDictionary`2[TKey,TValue] parameters, CitizenFX.Core.Callbac
kDelegate callback, System.Boolean debug) [0x000aa] in <6f835765886c4fada3e5ffb1