undefined method `map' for #<String:0x000055b29c009f20>
Did you mean?  tap (NoMethodError)

/usr/local/lib/tdiary/tdiary/tdiary_style.rb:203:in `format_paragraph'
/usr/local/lib/tdiary/tdiary/tdiary_style.rb:162:in `block in to_html4'
/usr/local/lib/tdiary/tdiary/tdiary_style.rb:121:in `each'
/usr/local/lib/tdiary/tdiary/tdiary_style.rb:121:in `each_section'
/usr/local/lib/tdiary/tdiary/tdiary_style.rb:144:in `to_html4'
/usr/local/lib/tdiary/tdiary/tdiary_style.rb:137:in `to_html'
(erb):14:in `eval_rhtml'
/usr/lib/ruby/2.5.0/erb.rb:876:in `eval'
/usr/lib/ruby/2.5.0/erb.rb:876:in `result'
/usr/local/lib/tdiary/tdiary.rb:324:in `eval_rhtml'
(erb):36:in `block in do_eval_rhtml'
/usr/local/lib/tdiary/tdiary.rb:1351:in `block in each_day'
/usr/local/lib/tdiary/tdiary.rb:1348:in `each'
/usr/local/lib/tdiary/tdiary.rb:1348:in `each_day'
(erb):35:in `do_eval_rhtml'
/usr/lib/ruby/2.5.0/erb.rb:876:in `eval'
/usr/lib/ruby/2.5.0/erb.rb:876:in `result'
/usr/local/lib/tdiary/tdiary.rb:891:in `do_eval_rhtml'
/usr/local/lib/tdiary/tdiary.rb:846:in `eval_rhtml'
/var/www/tree/d/index.rb:85:in `exec_diary'
/var/www/tree/d/index.rb:31:in `_main'
/var/www/tree/d/index.rb:16:in `main'
/var/www/tree/d/index.rb:116:in `<main>'