It's hard to say. Maybe you could contact the comic's support team or look for related announcements on relevant platforms to find out if there's a downtime today.
The 'Zits' comics are known for their relatable teenage humor and realistic family dynamics. The characters are well-developed and the storylines often capture common teenage experiences.
Nowadays, comic books are typically made by a team of creators. First, a writer comes up with the story and plot. Then, an artist sketches the characters and scenes. After that, there's often a colorist who adds colors to make it visually appealing. Finally, a letterer adds the text and speech bubbles.