On 2 June 2015, Erlandsson signed a three-year contract with Nottingham Forest, for whose under-18 side he had spent a successful season on loan from Halmstads BK.
[4] In spite of efforts by Barrow to extend Erlandsson's loan spell, the goalkeeper returned to Forest on 25 December in order to experience football in a higher division.
[5] On 20 January 2017, Erlandsson was loaned to newly promoted Allsvenskan club AFC Eskilstuna until 5 November; the end of the Swedish football season.
[7] After time back in Nottingham, Erlandsson again moved out on a one-month loan to National League North club Salford City on 16 March 2018.
[11][12] Erlandsson opted to leave Frej in June 2019, without making a first-team appearance, and take a break from playing professional football due to mental health issues around anxiety.