!price scrubland -is:online throws an error

[bra1n]

Sep 28 08:32:09 judgebot app/bot.1: [ERROR] [card] - RangeError: RichEmbed field values may not be empty. 
Sep 28 08:32:09 judgebot app/bot.1:     at RichEmbed.addField (/app/node_modules/discord.js/src/structures/RichEmbed.js:158:34) 
Sep 28 08:32:09 judgebot app/bot.1:     at resolve (/app/modules/card.js:248:23) 
Sep 28 08:32:09 judgebot app/bot.1:     at Promise (<anonymous>) 
Sep 28 08:32:09 judgebot app/bot.1:     at MtgCardLoader.generateEmbed (/app/modules/card.js:202:16) 
Sep 28 08:32:09 judgebot app/bot.1:     at Promise.all.then (/app/modules/card.js:327:22) 
Sep 28 08:32:09 judgebot app/bot.1:     at <anonymous> 
Sep 28 08:32:09 judgebot app/bot.1:     at process._tickCallback (internal/process/next_tick.js:188:7)