Infant cannot be put down

Hello dear fellow mummies, sorry for my bad English. My Infant now 7 months just started Ifc on 2nd June. He was at the same centre when he was 4 months and when CB is started he stayed at home with me for 2 months plus as i was WFH with husband and 3 year old toddler. During wfh is was tiring as he need to baby wear while i was doing my work at the laptop. Now the ifc teacher informed me that my infant could not be put down and need to be carry all the time. Seeking for advices and tips from all. Is it normal and what can i do to help the ifc teacher. Thank you dear mummies.