Cannot read property 'getElementsByTagName' of null

[GZWZC]

i have two page,
page1:index
page2:detailsIndex

the photoswipe is used to the page2, when i enter the page2,
click the pic once,console.info
"Uncaught TypeError: Cannot read property 'getElementsByTagName' of null
at Object.options.getThumbBoundsFn (bundle.js:60723)
at PhotoSwipe. (bundle.js:59004)
at _shout (bundle.js:56486)
at PhotoSwipe.init (bundle.js:56944)
at PhotoSwipe. (bundle.js:55915)
at CallbackQueue.notifyAll (bundle.js:14049)
at ReactUpdatesFlushTransaction.close (bundle.js:13776)
at ReactUpdatesFlushTransaction.closeAll (bundle.js:15234)
at ReactUpdatesFlushTransaction.perform (bundle.js:15181)
at ReactUpdatesFlushTransaction.perform (bundle.js:13806)"

click the pic twice , no response
click the pic three times , the dom is clear:

before:<div class="pswp-thumbnails"><div class="pswp-thumbnail"><img /></div></div>

after:<div class="pswp-thumbnails"></div>