I have a problem with my php code getting an error "Undefined property"

I m having an error in my php code which I downloaded from the internet. "Undefined property" error

Some errors in the code

Undefined property "Scategory.id, intelephense(1010) Dun 25, Col T

Ⓒ undefined property Scategory J. Intelephense(1014) In 29, Col 341

Undefined property Sategory intelephema(1014) n 40, Cal 13)

Undefined property Scategory, intelephensect010) Dun Cpl 341

Undefined property Scategory, 1014) 5 Col 131

Undefined property Scategory it. intelepheme1014) (n 62. Col 341

Undefined property T. intriptea1014) En 118 Col

Undefined property Sh10141 In 125 C31