What is California Civil Code Section 51?
The Unruh Civil Rights Act is unique to California. While the federal ADA allows plaintiffs to sue for injunctive relief (forcing you to fix the site) and attorney's fees, Unruh allows for "Statutory Damages."
This means that if a person with a disability encounters a barrier on your website, you owe them money. Period. There is no "grace period" to fix the site, and "not knowing" about the error is not a legal defense.
Strict Liability
You are liable even if you didn't intend to discriminate. If the code is broken, you are responsible.
Stacking Fines
Fines often stack "per visit." Serial plaintiffs may visit your site three times to claim $12,000 in damages.