I can’t get to my email now;  said not closed correctly and it now shows checked for corrupted database and that is as far as I can go

Same here.

Same here. Here are the details  System.Data.SQLite.SQLiteException (0x80004005): SQL logic error or missing database
   at MailClient.Storage.Data.BlobStream.Create(IDbConnection connection, String databaseName, String tableName, String columnName, Int64 rowId, Boolean readOnly)
   at MailClient.Storage.Data.DatabaseCopyTool.CopyContents(Table table, Boolean sortDesc)
   at MailClient.Storage.Data.DatabaseCopyTool.CopyTableData(Table table)
   at MailClient.Storage.Data.DatabaseCopyTool.CopyInternal(String specificTable, Boolean copyIndexesViewsAndTriggers)
   at DbRepair.CorruptionChecker.CheckCorruption(RepairOptions repairOptions, CancellationToken token)
   at DbRepair.CheckingProcess.Check(CancellationToken token)
Table: LocalMailsIndex3_segdir
databaseFile: 821ac7c6-6538-40ff-bf98-6fa6d130460d\a34dcf04-9b74-4534-b13d-9e34f717ab31\mail_fti.dat


From what I see from the log, your database is most likely corrupted.

Please note that you have to close eM Client before making any changes in the database location, proceeding without closed eM Client can cause further problems.

In case you have all your data saved on servers you can simply delete the database folder and start eM Client.
It will create empty database where you can set your accounts again. Then all your data should be pulled to eM Client automatically.
You can find eM Client database here:
C:\Users%Current User%\AppData\Roaming\eM Client
To locate AppData folder you need to view hidden folders in Windows:

In case that you have an account set as POP3, you can restore the old database backup if you made any in Menu > File > Restore