Did you try the Rebuild Quick Find steps?

1. Try this steps first https://help.sagecrm.com/on_premise/en/2022R1/Administration/Content/Troubleshooting/TS_RecreatingQuickFindIndex.htm
2. If it does not work, the try this script -to remove spaces.
   

   DROP INDEX [IDX_Bord_Caption] ON [dbo].[Custom_Tables]

   GO

   ALTER TABLE [dbo].[Custom_Tables] DROP CONSTRAINT [UC_CustomTables_Name]

   GO

   alter table custom_tables alter column bord_caption nvarchar(40)

   go

   alter table custom_tables alter column bord_name nvarchar(40)

   go

   CREATE NONCLUSTERED INDEX [IDX_Bord_Caption] ON [dbo].[Custom_Tables]

   ( [Bord_Caption] ASC

   )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]

   GO

   ALTER TABLE [dbo].[Custom_Tables] ADD CONSTRAINT [UC_CustomTables_Name] UNIQUE NONCLUSTERED

   ( [Bord_Name] ASC, [Bord_DatabaseID] ASC, [Bord_Deleted] ASC

   )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]

   GO

   update custom_tables set bord_caption = RTRIM(bord_caption), bord_name = RTRIM(bord_name)

   go

3. Remember to try step#2 after taking a backup. so that you have to option to revert if something goes wrong.