The photo up there is a letter by Wes Bell, a filmmaker who made The Maze Runner in which Dylan is a main character.
If you can't really tell what is written up there, here it is :
“Well, it’s been a whirlwind of emotions these past few days,I’ve been overwhelmed with feelings of anger and sadness and guilt. But, ultimately I find myself left with a deep love and respect for Dylan. “He is one tough cookie,I’m sorry for the grief this accident has caused his friends and family as well as my wonderful cast and crew. It’s scary seeing your friend get hurt, but fortunately, Dylan is going to be just fine. After a few weeks of rest and recovery he’ll be back up and running to finish our adventure together. All the best.” - Wes Bell
“Dylan O’Brien was injured yesterday while filming Maze Runner: The Death Cure in Vancouver, Canada,” Fox said in a statement, according to The Hollywood Reporter. “He was immediately transferred to a local hospital for observation and treatment. Production on the film will be shut down while he recovers. Our thoughts go out to Dylan for a full and speedy recovery.”
I can't really describe how I felt when I heard this... My thoughts are with you, Dylan. I love you so much and wish you the speed recovery. xo