Rename the vimrc in the home directory, and vim cannot load the configuration normally

[jokergaming]

Downloaded your configuration, the script works normally, but when I rename .vimrc to .renamevimrc and start vim with vim -u .renamevimrc, an error occurs.

Error detected while processing /home/user/.vimrc2[8]../home/user/.vim_runtime/vimrcs/plugins_config.vim:
line   18:
E117: Unknown function: pathogen#infect
line   19:
E117: Unknown function: pathogen#infect
line   20:
E117: Unknown function: pathogen#infect
line   21:
E117: Unknown function: pathogen#helptags
line  127:
E723: Missing end of Dictionary '}':
line  128:
E10: \ should be followed by /, ? or &
line  129:
E10: \ should be followed by /, ? or &
line  130:
E10: \ should be followed by /, ? or &
line  131:
E10: \ should be followed by /, ? or &
line  132:
E10: \ should be followed by /, ? or &
line  133:
E10: \ should be followed by /, ? or &
line  134:
E10: \ should be followed by /, ? or &
line  135:
E10: \ should be followed by /, ? or &
line  136:
E10: \ should be followed by /, ? or &
line  137:
E10: \ should be followed by /, ? or &
line  138:
E10: \ should be followed by /, ? or &
line  139:
E10: \ should be followed by /, ? or &
line  140:
E10: \ should be followed by /, ? or &
line  141:
E10: \ should be followed by /, ? or &