Association rule mining interpretation
Yes, this basically means that no sensible rules can be built with the constrains of support and confidence you impose. Note that your lift is always trivially one. The solution to this is given in the documentation of the package:

Note: The default value in APparameter for minlen is 1.
This means that rules with only one item (i.e., an empty
antecedent/LHS) like {} =&gt; {beer} will be created. These
rules mean that no matter what other items are involved
the item in the RHS will appear with the probability given
by the rule's confidence (which equals the support). If
you want to avoid these rules then use the argument
parameter=list(minlen=2).