I have uninstalled important apps with titanium backup and I can not restore the OS!!

I have a chinese version but I have update sucesfully to an international version. After that I was trying to unsintall some crap (apks) I have uninstall some important stuff like the telephone apk and other things I don´t know. The bootloader is still closed I have no custom recovery. I have tryed everything but I´m out of ideas. Do you have some suggestions for me?

Thanks in advance!

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