i got this error when i want send email to users :
POST [link to] /api/admin-mail
null
Php flarum info
Flarum core 0.1.0-beta.7
PHP 7.0.28
Loaded extensions: Core, date, libxml, openssl, pcre, sqlite3, zlib, bz2, calendar, ctype, curl, hash, filter, ftp, gettext, gmp, SPL, iconv, pcntl, readline, Reflection, session, standard, shmop, SimpleXML, mbstring, tokenizer, xml, bcmath, dom, fileinfo, gd, imagick, imap, intl, Phar, json, exif, mcrypt, mysqlnd, mysqli, PDO, pdo_mysql, pdo_sqlite, posix, pspell, soap, sockets, tidy, wddx, xmlreader, xmlrpc, xmlwriter, xsl, zip, phalcon, ionCube Loader
EXT flarum-approval v0.1.0-beta.7
EXT sides-autovid 0.1.0-beta.3
EXT flarum-bbcode v0.1.0-beta.5
EXT oe800-bbcode-alerts 0.1.6
EXT oe800-bbcode-cards 0.1.4
EXT antoinefr-bbcode-fa v0.1.1
EXT oe800-bbcode-pastebin 0.1.2
EXT oe800-bbcode-bars 0.1.5
EXT oe800-bbcode-special 0.1.5
EXT oe800-bbcode-tables 0.1.0
EXT davis-customfooter v0.1.0-beta4
EXT datitisev-dashboard v0.1.0-beta.7
EXT hyn-default-group 0.5.0
EXT flarum-emoji v0.1.0-beta.6
EXT clarkwinkelmann-emojionearea 0.1.2
EXT flarum-english v0.1.0-beta.7
EXT issyrocks12-filter 1.2.2
EXT flagrow-bazaar 0.2.4
EXT flagrow-byobu 0.1.2
EXT flagrow-impersonate 0.1.0
EXT flagrow-linguist 0.1.2
EXT flagrow-upload 0.6.0
EXT flagrow-user-directory 0.1.0
EXT flarum-flags v0.1.0-beta.7
EXT milescellar-french v1.1.0
EXT sijad-recaptcha 0.0.2
EXT matpompili-imgur-upload v1.0.0
EXT flagrow-latex 0.1.1
EXT flarum-likes v0.1.0-beta.6
EXT sijad-links 0.1.0-beta.6
EXT flarum-lock v0.1.0-beta.7
EXT flarum-markdown v0.1.0-beta.5
EXT ganuonglachanh-markdown-editor 0.9
EXT flarumchina-mediaembed-pro 0.3.6
EXT flarum-mentions v0.1.0-beta.7
EXT antoinefr-online 0.3.0
EXT isaa-isaa-opengraph 0.1
EXT sijad-pages 0.1.0-beta.3
EXT reflar-gamification 3.0.1
EXT reflar-polls 1.1.0
EXT reflar-pretty-mail 0.1.0-beta.2
EXT reflar-user-management 0.1.4
EXT zeokat-seoslugs v0.1.1
EXT ganuonglachanh-search 0.3
EXT terabin-sitemap v1.0.2-beta.2
EXT sijad-auth-steam 0.1.10
EXT flarum-sticky v0.1.0-beta.7
EXT flarum-subscriptions v0.1.0-beta.6
EXT flarum-suspend v0.1.0-beta.7
EXT flarum-tags v0.1.0-beta.8
EXT avatar4eg-users-list 0.1.1
EXT vingle-share-social 0.1.0
