Shemoneh Esreh

Mentioning God's name

Forgot "HaMelech HaKadosh" during the Ten Days of Repentance

Repetition of the Amidah

Listening to the Chazan's Repetition through a Loudspeaker

Birkas Kohanim

Calling "Kohanim" for a High Priest and a Young Priest

Blessings of the Shema

Mistake in the Text of the Blessing Ga'al Yisrael

Prayer

Completing Maariv by Being a Chazan

Birkas Kohanim

A Kohen Serving as Chazan

Blessings of the Shema

Reasons for the Sanctity of "Yotzer Or"

Kedushah

Keeping Feet Together During the Amidah

Davening in a place with a different nusach

Praying in a Place with a Different Custom

Davening in a place with a different nusach

Being in a Place with a Different Custom

Repetition of the Amidah

Chazzan's Repetition within 13.5 Minutes after Sunset

Morning blessings

Forgot 'Elokai Neshamah' and did not concentrate on 'Mechaye HaMeitim'

Grace after meal (birkas hamazon)

Remembered during the Amidah that 72 minutes have passed since his meal

Personal requests

Prayer for Spiritual and Material Needs on Shabbat

Praying in a minyan

Started His Prayer After Everyone