1146 Table 'zencart.table_ZONES_TO_GEO_ZONES' doesn't exist

Can an expert please explain what the error below means. Thanks

1146 Table 'zencart.table_ZONES_TO_GEO_ZONES' doesn't exist
in:
[select zone_id from table_ZONES_TO_GEO_ZONES where geo_zone_id = '1' and zone_country_id = '' order by zone_id]
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What were you doing when this error occured? The error means that database table is missing.

Hi Kim, Thanks for your reply.

I have cloned 5 TABLE shipping modules for different areas. They all worked last 2 months.
Only 4 of them now work ( there was an error that just appeared yesterday on the shopping cart freight page, in the freight box....something like MODULE something...something...something) so I reloaded all the modules from backup). I have checked and double checked my altered text and it is not that. It is the same module everytime that now causes this error I have submitted. Thanks for your help.