There are a number of first team players that are missing in the database for Chichester City, there are also a few others that have since left the club that are still listed as playing for the club https://sortitoutsi.net/football-manager-data-update/team/5103772 https://chichestercityfc.co.uk/teams/first-team/squad/
Ones that need to be added in are Rob Hutchings (defender), Emmett Dunn (CM and RB), Olly Munt (winger and FW), Lloyd Rowlatt (midfielder), Ethan Pritchard (LW and ST), Tom Chalaye (ST), Joe Clarke (midfielder), Ryan Davidson (CB), Eric-Georges Dellaud (defender), Lewis Hyde (defender), Ben Pashley (defender), Isaac Bello (midfielder), Jack Lumsden (midfielder) and Joe Moore (midfielder). Jimmy Wild, Scott Jones and Tom Dinsmore are no longer at the club
When half time happens, I cannot make any subsitutions during this period as the cursor does not change when I hover over the player that I'd like to replace. This means I have to wait until I start the 2nd half of games before being able to sub on players