Cant upgrade 7.0 to 7.0.1

Ok, now i found the problem... i dunno why because i install at the first time the latest version release of dolphin 7 but it was set as version 7.0.0 rc5 so i change it and it work....

but now i got a much bigger problem... all my language is mess!! i lost most of the french and spanish language that i have translate!!!

whats wrong??? and i cant import my last saved language files because i got a SQL error

Mysql error: Duplicate entry 'fr' for key 2

so what am i suppose to do now???

Did you by chance forget to remove the original language entry from your installation?

well if i do that... i guess that the change in the language key made by the update will not appear into the one i saved before the update

so i will have again some bug?? right??

Did you follow this step of the instructions ?

NOTE: You can also update your custom language translations if you create the appropriate translated files for your custom language, BEFORE THE UPGRADE PROCESS, in upgrade/files/7.0.0-7.0.1/ and upgrade/files/7.0.0-7.0.1/modules/*/ directories. There are lang_en.php files by default in these directories. Create a translated copy of lang_en.php for your custom language. For example, if you have the Russian language installed you can add lang_ru.php files. Then all new language keys for your custom language will be added automatically.

Dolphin upgrade works fine(7.0 to 7.1),  but most of the mods need to be upgraded. two flash apps are asking licence key(comments video player and photo shooter)

YEP, it's my fault!! dawm it.... i dont read carefully.... so is there any way to remake the upgrade process but only for the language file? and this time i will put my last saved french and spanish language?

ok, i restore my databas from a backup. i redid the upgrade by putting all the translated lang file in the update folder... but i got again the same problem... all my language is messed up

so what is the problem