diff --git a/src/book.py b/src/book.py
index ccc7b55..4e706b3 100644
--- a/src/book.py
+++ b/src/book.py
@@ -562,7 +562,11 @@ class Book:
             'Some ting went wrong with footnotes after libra conversion'
 
         footnotes = []
+
         for i, (anc_tag, cont_tag) in enumerate(zip(footnote_anchors, footnote_content)):
+            if cont_tag.find('a').attrs.get('href') is None:
+                cont_tag.a.decompose()
+                continue
             assert anc_tag['name'] == cont_tag.find('a')['href'][1:], \
                 'Something went wrong with footnotes after libra conversion'
 
@@ -575,9 +579,10 @@ class Book:
 
             # extra digits in footnotes from documents downloaded from livecarta
             a_text = cont_tag.a.text
-            sup = cont_tag.find_all('p')[0].find('sup')
-            if sup and sup.text == a_text:
-                sup.decompose()
+            if len(cont_tag.find_all('p')):
+                sup = cont_tag.find_all('p')[0].find('sup')
+                if sup and sup.text == a_text:
+                    sup.decompose()
             cont_tag.a.decompose()
 
             unicode_string = ''
@@ -612,7 +617,10 @@ class Book:
 
             for img in img_tags:
                 img_name = img.attrs.get('src')
-                img_path = pathlib.Path(f'{self.html_path.parent}/{img_name}')
+                if (len(img_name) >= 3 ) and img_name[:3] == '../':
+                    img_name = img_name[3:]
+
+                img_path = pathlib.Path(f'{self.html_path.parent}', f'{img_name}')
 
                 if self.access is not None:
                     link = self.access.send_image(img_path, self.book_id)
@@ -1050,8 +1058,8 @@ class Book:
 
 if __name__ == "__main__":
     folder = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
-    file = pathlib.Path(os.path.join(folder, 'html/82/82.html'))
-    out_path = pathlib.Path(os.path.join(folder, 'json/82.json'))
+    file = pathlib.Path(os.path.join(folder, 'html/ch13/Ch_13_edit.html'))
+    out_path = pathlib.Path(os.path.join(folder, 'json/ch13.json'))
 
     book = Book(html_path=file, output_path=out_path)
     book.convert_from_html(logging_format='%(asctime)s - %(levelname)s - %(message)s')