I cannot log into minecraft technic launcher [duplicate]

Mojang has a support article on their website that explains possible reasons you might not be able to log in:

https://help.mojang.com/customer/en/portal/articles/329527-minecraft-log-in

Do I log in with my email address or my username?

There are two account types - Minecraft accounts and Mojang accounts.

Any Minecraft account created after Fall 2012, or one that has been migrated from the old account format is located on a Mojang account, and logs in with its email address. An older Minecraft account that has not yet been migrated uses the username to login.

You can learn more about the different account types here

I forgot my password

To reset the password for a Minecraft account (you log in with your username) visit account.mojang.com/migrate.

To reset the password for a Mojang account (you log in with your email address) visit account.mojang.com/password.

I forgot the email address used for my account

If you have a Mojang account and have forgotten the email that you log in with, try resetting your password. This will send an email to the address that you have registered, letting you know which address you used. Alternatively, try other email addresses that you own. If you cannot get Mojang system emails, visit this article

I need to change the email address used for my account

If you have a Minecraft account you will need to migrate it to change the email address, to learn more please go here.

To change the email on a Mojang account, visit account.mojang.com/me/settings. You can either have instructions sent to your current address or, if you don't have access to that email, you can have it changed by passing a security challenge.

I remember my email address, but not my username.

If you have a Mojang account, your Minecraft username will be shown in-game and on your Mojang account page.

I've tried the above, but I still need help.

Please contact customer support through the contact form.

For clickable links, visit the article support page linked above.

If you've migrated to a Mojang account, or made an account since mid-2012, then you need to use your email instead of your username to login.