more informative errors when token is invalid

backend/inventoree/inventoree.go

@@ -90,6 +90,8 @@ func (i *Inventoree) Datacenters() []*store.Datacenter {
 func (i *Inventoree) Reload() error {
 	err := i.loadRemote()
 	if err != nil {
+		term.Errorf("\n%s\n", err)
+		term.Warnf("Trying to load data from cache...\n")
 		// trying to use cache
 		return i.loadLocal()
 	}

store/parser.go

@@ -112,6 +112,7 @@ func parseExpression(expr []rune) ([]*token, error) {
 			}
 
 			return nil, fmt.Errorf("Invalid symbol %s, expected -, *, %% or a hostname at position %d", string(sym), i)
+
 		case stateReadGroup:
 
 			if sym == '@' {