I would guess the app you installed is a ReAction/ClassAction app? If yes check what classes it uses, I bet its installed an older class than you already have... the reqester is a bit strange on AmiDock, Ive had it b4 and it turned out to be a classes problem. I simply looked to see what classes the app i installed used, and recopied them back from my OS3.9. IIRC the app in question was AmiFTP.... which you should NEVER install on an OS3.5+ system, it doesnt need installing.
