Different problems are mixed in this post.
leminhhang81:
You are working in PDGS-mode. I recommend processing in TOOLBOX-mode. Few more details you find in post Sen2cor 2.5.5 - No such file _PVI.jp2
unnic, gabro, batalhadematos:
With regard to the PVI-file problem please look to post Error Sen2cor or to the same as leminhhang81.
ardo: It looks like you haven’t downloaded and installed the CCI-files. Please download the S2-PDGS-MPC-L2A-SUM-V2.5.5_V2.pdf file from the Sen2Cor download page. There is now an updated version explaining what to do for this.