I have the same problem using Sen2cor 2.5.5 on LINUX and the following as well:
Progress[%]: 7.81 : PID-151474, L2A_Tables: band ASP imported, elapsed time[s]: 7.408, total: 0:03:07.704653
[ERROR] L2A_Tables: 1427 ESA CCI Water Bodies map not present, water detection will be performed without a priori information
[ERROR] L2A_Tables: 1427 ESA CCI Water Bodies map not present, water detection will be performed without a priori information
[ERROR] L2A_Tables: 1481 ESA CCI Land Cover map not present, cloud detection over urban areas will be performed without a priori information
[ERROR] L2A_Tables: 1481 ESA CCI Land Cover map not present, cloud detection over urban areas will be performed without a priori information
[ERROR] L2A_Tables: 1558 ESA CCI Snow Condition map not present, no snow map post-processing will be done
[ERROR] L2A_Tables: 1558 ESA CCI Snow Condition map not present, no snow map post-processing will be done