He did tawaaf for ‘Umrah inside the Hijr

The tawaaf in which a person goes in between the Hijr and the
Ka’bah is an incomplete tawaaf, because tawaaf should be around the entire
Ka’bah including the Hijr, because Allaah says (interpretation of the
meaning): “and circumambulate the Ancient House (the Ka‘bah at Makkah)”
[al-Hajj 22:29]. But if it is incomplete then it is not in accordance
with the command of Allaah and His Messenger. The Prophet (peace and
blessings of Allaah be upon him) said: “Whoever does any action that is not
in accordance with this matter of ours will have it rejected.”  

Thus it is clear that the tawaaf that these two people – the
man and his wife – did is a tawaaf that was not correct, so what they should
do now, straight away, is put on their ihraam garments and go to Makkah and
do tawaaf with the intention of doing ‘Umrah, and do saa’i and cut their
hair, or the man may shave his head and the woman should cut her hair. Thus
they will exit their ihraam. This is what they have to do now. 

As for what they have done of things that are forbidden in
ihraam, which they have done out of ignorance, there is no sin on them for
that and they do not have to offer any fidyah, because Allaah, may He be
blessed and exalted, says (interpretation of the meaning): “Our Lord!
Punish us not if we forget or fall into error” [al-Baqarah 2:286], and
the Prophet (peace and blessings of Allaah be upon him) told us that
Allaah, may He be exalted, said: “I will do that.” End quote.